Auth bypass in Avideo
CVE-2026-56346
AVideo through version 25.0 contains an authentication bypass vulnerability in the decryptMessage.json.php endpoint that allows unauthenticated users to decrypt PGP messages. Remote attackers can submit private keys, ciphertext, and passphrases to perform server-side decryption without credentials, exposing key material to logs and enabling resource exhaustion attacks.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.006 (47.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Avideo — versions 0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-5x2w-37xf-7962 (vendor-advisory)
- www.vulncheck.com/advisories/avideo-unauthenticated-pgp-message-decryption-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56346?
- CVE-2026-56346 is a medium-severity vulnerability in Avideo, classified under Missing Authentication for Critical Function. CVSS score: 6.5/10. Published 2026-06-20.
- How severe is CVE-2026-56346?
- Medium severity. CVSS v3 base score is 6.5 out of 10.