CVE-2026-81678

6.9 mediumEPSS 0.4%

Medium (6.9). EPSS 0.4% chance of exploitation in the next 30 days.

AVideo before 24.0 contains a server-side request forgery vulnerability in the isSSRFSafeURL function that fails to extract embedded IPv4 addresses from NAT64, 6to4, and Teredo IPv6 transition address formats. Unauthenticated attackers can bypass SSRF protections via the LiveLinks proxy endpoint to reach internal services and cloud metadata endpoints by encoding private IPv4 targets in transition address formats.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2026-08-27
Modified: 2026-08-29
Record from: the NVD, synced 2026-10-19

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-474r-333v-6p93
https://www.vulncheck.com/advisories/avideo-ssrf-guard-bypass-via-ipv6-transition-addresses
https://github.com/WWBN/AVideo/security/advisories/GHSA-474r-333v-6p93

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