CWE-347 · Improper Verification of Cryptographic Signature

932 CVEs classified under CWE-347 (Improper Verification of Cryptographic Signature). Browse by severity and year.

Top CVEs for CWE-347
CVESeverityScorePublishedSummary
CVE-2026-76482Critical10.02026-10-07As part of Cisco's ongoing commitment to proactive security and product quality, the engineering team for Cisco License On-Prem, formerly Cisco Smart Software…
CVE-2026-5430Critical10.02026-08-06The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker to craft a…
CVE-2026-56451Critical10.02026-07-14A vulnerability has been identified in Opcenter X (All versions < V2604). Affected applications do not properly validate the algorithm specified in the JSON We…
CVE-2026-54782Critical10.02026-07-08CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF SAML 1.1 and SAML 2.0 token val…
CVE-2026-48558Critical10.02026-06-12SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC aut…
CVE-2025-54419Critical10.02025-07-28A SAML library not dependent on any frameworks that runs in Node. In version 5.0.1, Node-SAML loads the assertion from the (unsigned) original response documen…
CVE-2023-25574Critical10.02025-02-25`jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced in `jupyterhub-lt…
CVE-2024-45409Critical10.02024-09-10The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signa…
CVE-2024-32962Critical10.02024-05-02xml-crypto is an xml digital signature and encryption library for Node.js. In affected versions the default configuration does not check authorization of the s…
CVE-2022-24884Critical10.02022-05-06ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()` does not check whether the signature value…
CVE-2021-33885Critical10.02021-08-25An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a remote unauthenticated attacker to send the…
CVE-2020-2021Critical10.02020-06-29When Security Assertion Markup Language (SAML) authentication is enabled and the 'Validate Identity Provider Certificate' option is disabled (unchecked), impro…
CVE-2026-44748Critical9.92026-06-09SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modif…
CVE-2024-21669Critical9.92024-01-11Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments…
CVE-2022-39366Critical9.92022-10-28DataHub is an open-source metadata platform. Prior to version 0.8.45, the `StatelessTokenService` of the DataHub metadata service (GMS) does not verify the sig…
CVE-2026-86405Critical9.82026-10-09Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. PrestaShop Virtual POS Module allows Signatu…
CVE-2026-85531Critical9.82026-10-09Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. OpenCart Virtual POS Module allows Signature…
CVE-2026-107722Critical9.82026-10-08fast-jwt provides fast JSON Web Token (JWT) implementation. From 6.2.0 until 6.3.0, fast-jwt can misclassify RSA public-key text as an HMAC secret when the key…
CVE-2026-96760Critical9.82026-09-28Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization…
CVE-2026-56207Critical9.82026-09-09Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2-http interface, allowing altering user name and acting as anoth…
All CVEs classified under CWE-347 — newest first (page 1 of 10)
CVESeverityScorePublishedSummary
CVE-2026-102946Critical9.12026-10-15joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. Prior to 1.7.4, joserfc.jws.deseria…
CVE-2026-110765Medium5.92026-10-14FlexPrice through 2.1.38 contains an authentication bypass vulnerability in HandleQuickBooksWebhook that skips signature verification when the intuit-signature…
CVE-2026-95633High7.52026-10-13CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An att…
CVE-2026-95632High7.52026-10-13CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An att…
CVE-2026-103297High7.52026-10-13CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An att…
CVE-2026-103296High7.52026-10-13CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An att…
CVE-2026-102502Medium5.32026-10-13CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An att…
CVE-2026-97799High7.82026-10-13Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.
CVE-2026-96957High8.82026-10-13Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-96252Critical9.12026-10-13Improper verification of cryptographic signature in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a net…
CVE-2026-87696High7.52026-10-13Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-85818Critical9.02026-10-13Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-83798Medium5.52026-10-13Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.
CVE-2026-70071Medium5.52026-10-13Improper verification of cryptographic signature in DNS Server allows an authorized attacker to perform tampering locally.
CVE-2026-69650High7.82026-10-13Improper verification of cryptographic signature in Windows Key Distribution Center allows an authorized attacker to elevate privileges locally.
CVE-2026-102866High8.12026-10-13Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-65197Low3.12026-10-13H3C HDM Family-A verifies the RSA signature of a firmware image against a public key it reads from the mutable file `/conf/public.pem`. That file is writable b…
CVE-2026-108971Critical9.62026-10-13A flaw has been found in D-Link DCS-930L B1.08B4. This impacts the function mpfd_decode of the file bootloader_region.bin of the component Emergency HTTP Recov…
CVE-2026-85962High7.52026-10-12Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an improper authentication vulnerability in SAML processing. In d…
CVE-2026-103902High7.52026-10-12Improper verification of cryptographic signature vulnerability in DigiDoc libdigidocpp, DigiDoc DigiDoc4, DigiDoc DigiDoc Android, and DigiDoc DigiDoc iOS. The…
CVE-2026-108699Medium6.52026-10-11hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosign_ve…
CVE-2026-1065812026-10-09Before 4.92.0, Docker Desktop for Windows did not verify the signature of a package supplied to Docker Desktop Installer.exe install -package. An attacker able…
CVE-2026-86405Critical9.82026-10-09Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. PrestaShop Virtual POS Module allows Signatu…
CVE-2026-85531Critical9.82026-10-09Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. OpenCart Virtual POS Module allows Signature…
CVE-2026-103329Medium5.32026-10-09The Super Payments WordPress plugin before 1.43.1 does not properly verify the authenticity of incoming payment webhook notifications, as the signing key used…
CVE-2026-107724High7.42026-10-08fast-jwt provides fast JSON Web Token (JWT) implementation. In 6.2.4, fast-jwt can classify raw serialized public JWK or JWKS JSON as an HMAC secret because sr…
CVE-2026-107722Critical9.82026-10-08fast-jwt provides fast JSON Web Token (JWT) implementation. From 6.2.0 until 6.3.0, fast-jwt can misclassify RSA public-key text as an HMAC secret when the key…
CVE-2026-107720High7.42026-10-08fast-jwt provides fast JSON Web Token (JWT) implementation. Prior to 6.3.1, fast-jwt createVerifier accepts an unsigned JWT when key is an empty string or null…
CVE-2026-84271High7.82026-10-08IBM Guardium Data Protection 12.2 is vulnerable to a signature verification bypass in the patch installer. An attacker with local access could exploit this vul…
CVE-2026-14999High7.42026-10-08IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacke…
CVE-2026-14497High8.12026-10-08IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote authent…
CVE-2026-76482Critical10.02026-10-07As part of Cisco's ongoing commitment to proactive security and product quality, the engineering team for Cisco License On-Prem, formerly Cisco Smart Software…
CVE-2026-79807High7.82026-10-06A missing integrity verification vulnerability in the Windows client software for ClearPass Policy Manager could allow malicious users on a local instance to e…
CVE-2026-25302High7.12026-10-06Cryptographic Issue when processing non-ELF partitions, authentication and signature checks are bypassed, allowing unsigned or corrupted images to be mounted a…
CVE-2026-78860High7.82026-10-05An issue in Mercusys AC12 V2 allows a local attacker to execute arbitrary code via the storage of information in plaintext
CVE-2026-77805High7.92026-10-05In Progress® Telerik® Fiddler® Classic for Windows, versions prior to v6.0.20262.10021, the integrity check applied to the external helper tools launched by th…
CVE-2026-105161Medium5.32026-10-04A flaw has been found in invariant-systems-ai aiir up to 1.7.0. The affected element is an unknown function of the component Policy Gate Handler. Executing a m…
CVE-2026-105118Medium4.72026-10-03OpenAM before 16.1.3 contains an open redirect vulnerability that allows unauthenticated attackers to redirect users by supplying an unverified id_token_hint t…
CVE-2026-718912026-10-03In Bouncy Castle for Java before 1.86, BLS12_381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPo…
CVE-2026-718872026-10-03In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey whose Subkey Binding signature carried no…
CVE-2026-104437High7.42026-10-02Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASH_SINGLE inputs…
CVE-2026-104435High7.42026-10-02Zebra zebrad 4.4.0 and zebra-script 6.0.0 fail to enforce a ZIP-244 consensus rule, accepting V5 transparent inputs signed with SIGHASH_SINGLE that lack a corr…
CVE-2026-863262026-10-02An improper verification of cryptographic signature vulnerability exists in protocol gateways because the device does not properly verify the cryptographic aut…
CVE-2026-635712026-10-02Improper verification of cryptographic signature in the attribute certificate path validator (PkixAttrCertPathValidator, also used by PkixAttrCertPathBuilder)…
CVE-2026-183972026-10-01This vulnerability enables unauthenticated remote code execution (RCE) on a victim's machine by exploiting a combination of cryptographic weaknesses and memory…
CVE-2026-942122026-10-01Improper verification of cryptographic signature vulnerability in Apache APISIX. Any unauthenticated attacker could impersonate any user on every route prot…
CVE-2026-103245Medium5.32026-10-01n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 fail to verify the x-webflow-signature HMAC in the Webflow Trigger node w…
CVE-2026-87004High8.12026-09-30Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.31.3, when the OIDC login flow completes, backend/modules/auth/p…
CVE-2026-55174Medium5.92026-09-30UltrafastSecp256k1 is a high-performance, multi-backend secp256k1 engine with reproducible audit evidence, compatibility shims, and profile-based review scopes…
CVE-2026-47554High7.12026-09-30NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer where improper verification of cryptographic signatures may cause signatu…
CVE-2026-1025082026-09-30Improper Verification of Cryptographic Signature and Improper Certificate Validation in the OPC UA driver of Apache PLC4X (PLC4J) allows an attacker in a netwo…
CVE-2026-91191High7.52026-09-29The device's update mechanism includes conditions that allow unauthorized software packages to be accepted as authentic. During the boot process, the stock don…
CVE-2026-100293High8.82026-09-29In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, both the local and cloud update mechanisms apply new firmware without any cryptographic verification, relyi…
CVE-2026-102273High7.42026-09-28PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, PyJWT HMACAlgorithm.prepare_key is affected because HMAC key guard only…
CVE-2026-102272High7.42026-09-28PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.prepare_key in jwt/algorithms.py is affected because raw-…
CVE-2026-102271High7.42026-09-28PyJWT is a Python implementation of JSON Web Token standards. From 2.4.0 until 2.14.0, PyJWT HMACAlgorithm.prepare_key is affected because asymmetric-key guard…
CVE-2026-102268Critical9.12026-09-28PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, is_pem_format in jwt/utils.py is affected because is_pem_format does not recogni…
CVE-2026-102266High7.42026-09-28PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.from_jwk is affected because PyJWK verification path used…
CVE-2026-96760Critical9.82026-09-28Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization…
CVE-2026-94418High7.52026-09-27Under WOLFSSL_SMALL_CERT_VERIFY, ProcessPeerCertParse() runs the certificate signature check separately from the parse to keep peak memory down, then merges th…
CVE-2025-71422Medium5.72026-09-27Contrast is a Kubernetes runtime for confidential containers. In versions before 1.12.1, the secure persistent volume feature is vulnerable to a malicious host…
CVE-2026-844652026-09-25Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when Zammad checks the digital signature on an incoming S/MIME-signed email…
CVE-2026-618552026-09-25Zammad is a web based open source helpdesk/customer support system. In 7.0.3 and 7.1.1, under certain conditions, Zammad's verification of inbound PGP-signed e…
CVE-2026-567272026-09-25Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary In Zammad's inbound PGP email processing, the return value of the g…
CVE-2026-97732Medium5.12026-09-25IRONMACE Ironshield 1.0.0.167 has a tvk.sys kernel-mode driver that authenticates client executables by checking for expected publisher and root-certificate st…
CVE-2026-97731High7.12026-09-25MinIO through 7aac2a2 does not verify that every x-amz-* header present on a request also appears in the client-supplied X-Amz-SignedHeaders list. extractSigne…
CVE-2026-57178High7.42026-09-24Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the `vk-app` backend accepted VK application callback data withou…
CVE-2026-911872026-09-24Improper Verification of Cryptographic Signature vulnerability in dashbit nimble_zta allows an unauthenticated remote attacker to authenticate as an arbitrary…
CVE-2026-91814Medium5.32026-09-23A signature validation vulnerability exists in Foxit PDF Editor/Reader’s handling of incrementally updated PDF documents. Changes to visible document content m…
CVE-2026-18152High7.42026-09-22IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to forge validly-signed messages due to improper verification of cry…
CVE-2026-85995High7.32026-09-22Notepad++ is a free and open-source source code editor. From 8.9.7 until 8.9.8, the Notepad++ updater and signature verification path can accept a modified GUP…
CVE-2026-95503Medium6.82026-09-22A flaw was found in the Kerberos federation provider of Keycloak, an open-source identity and access management solution. When Kerberos password authentication…
CVE-2026-75939High7.42026-09-21A flaw was found in openshift/oc-mirror. The tool incorrectly verifies PGP (Pretty Good Privacy) release image signatures by checking for signature errors befo…
CVE-2026-94368High7.12026-09-21A flaw was found in the signature verification logic of noobaa-core, the core component of the NooBaa Multicloud Object Gateway. The issue occurs when the serv…
CVE-2026-9832Medium5.32026-09-19The Payment Gateway of Stripe for WooCommerce plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in all versions up to, and…
CVE-2026-59163Critical9.12026-09-18Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/sync_server.py parsed the JWT's header and p…
CVE-2026-93657High7.52026-09-18hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing inv…
CVE-2026-28199Low3.32026-09-18An authenticated user with access to the NetBackup Flex OS management shell could read arbitrary files from the underlying operating system by supplying a sp…
CVE-2026-28198High8.82026-09-18An authenticated, low-privileged user with access to the NetBackup Flex OS management shell could bypass the cryptographic signature verification step of a p…
CVE-2026-545812026-09-17mport is the MidnightBSD Package Manager. Prior to 2.7.8, the mport_fetch_bootstrap_index() function in libmport/fetch.c could return success when bootstrap in…
CVE-2026-86038High7.52026-09-17libp2p is a JavaScript implementation of the libp2p networking stack. From 15.0.0 until 16.0.5, @libp2p/gossipsub uses the default StrictSign policy in package…
CVE-2026-782232026-09-17Improper Verification of Cryptographic Signature vulnerability in team-alembic AshAuthentication allows a caller of the token revocation action to neutralise a…
CVE-2026-92718High7.32026-09-16Nuclei versions before 3.11.1 cache template signature verification based only on file modification time without content checksums. Attackers can replace verif…
CVE-2026-42784High7.42026-09-16A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discre…
CVE-2026-865852026-09-16The lack of signature verification of firmware update packages in VEO and VEO-XS Wi-Fi monitors, in versions prior to 01.48.001, allows an attacker who control…
CVE-2026-86109Medium6.62026-09-16The VeloCloud Edge software update workflow may accept update bundles without properly validating their signatures because the workflow does not restrict the d…
CVE-2026-58200High7.12026-09-15Payload Plugins is a collection of plugins designed to enhance Payload CMS. From 0.3.0 until 0.4.0, @jhb.software/payload-cloudinary-plugin deployments with cl…
CVE-2026-54155High7.72026-09-14node-opcua is an OPC UA implementation for TypeScript and Node.js. Prior to 2.166.0, the UserNameIdentityToken authentication handler in packages/node-opcua-se…
CVE-2026-57122High8.62026-09-14PraisonAI is a multi-agent teams system. Prior to 4.6.59, the WhatsApp and Linear bot webhook handlers verify HMAC signatures only when WHATSAPP_APP_SECRET or…
CVE-2026-87802Critical9.12026-09-14Improper verification of cryptographic signature vulnerability in Apache Syncope. When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an att…
CVE-2026-54248Medium6.52026-09-11Doco-CD is a GitOps continuous delivery tool that automatically deploys and updates Docker Compose projects/services and Swarm stacks. Prior to version 0.90.1…
CVE-2026-80469High8.32026-09-11An attacker may achieve arbitrary code execution on a target system by uploading a malicious device driver package, bypassing driver verification mechanisms, a…
CVE-2026-73784High8.82026-09-11A potential security vulnerability in HPE IceWall products could be exploited to tamper SAML response, allowing an attacker to impersonate another user.
CVE-2026-891692026-09-11live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .verity file is missing.
CVE-2026-89086Critical9.12026-09-10In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the…
CVE-2026-89043High7.42026-09-10passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent X…
CVE-2026-89042Critical9.12026-09-10passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by…
CVE-2023-54355High7.52026-09-09PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers…
CVE-2026-79970Medium5.62026-09-09Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Verification of Cryptograph…
CVE-2026-56207Critical9.82026-09-09Signature of Bearer token is not verified in last step of SAML2 authentication for Impala's hs2-http interface, allowing altering user name and acting as anoth…