Vulnerability in Openidentityplatform Openam
CVE-2026-105118
OpenAM before 16.1.3 contains an open redirect vulnerability that allows unauthenticated attackers to redirect users by supplying an unverified id_token_hint to the /oauth2/connect/endSession endpoint. Attackers can name any realm client in a forged hint to redirect victims to any registered post-logout URI, enabling phishing that borrows the OpenAM host's trust.
Published .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-6f8c-crwq-jqm3 (vendor-advisory)
- www.vulncheck.com/advisories/openam-before-16.1.3-open-redirect-via-unverified-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-105118?
- CVE-2026-105118 is a medium-severity vulnerability in Openidentityplatform Openam, classified under Improper Verification of Cryptographic Signature. CVSS score: 4.7/10. Published 2026-10-03.
- How severe is CVE-2026-105118?
- Medium severity. CVSS v3 base score is 4.7 out of 10.