Vulnerability Description
WWBN AVideo (current e01e41ecc and earlier) contains a brute-force rate limiting bypass in enforceRateLimit(), which protects login.json.php and 13 other endpoints. The function stores its attempt counter via a cache layer (ObjectYPT::setCacheGlobal) that silently discards writes for any client identified as a bot by isBot(). Because isBot() treats a missing User-Agent header as a bot by default — and also matches common bot identifiers such as 'curl', 'bot', 'crawler', and 'spider' — the counter never increments for such clients, so the rate limit never fires. An unauthenticated attacker can therefore submit unlimited login attempts (e.g., by omitting the User-Agent header or using curl's default User-Agent), enabling unrestricted password-guessing attacks.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/security/advisories/GHSA-6893-mcgv-9p2x
- https://www.vulncheck.com/advisories/wwbn-avideo-brute-force-rate-limiting-bypas
- https://github.com/WWBN/AVideo/security/advisories/GHSA-6893-mcgv-9p2x
FAQ
What is CVE-2026-82644?
CVE-2026-82644 is a vulnerability with a CVSS score of 7.5 (HIGH). WWBN AVideo (current e01e41ecc and earlier) contains a brute-force rate limiting bypass in enforceRateLimit(), which protects login.json.php and 13 other endpoints. The function stores its attempt cou...
How severe is CVE-2026-82644?
CVE-2026-82644 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-82644?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.