CVE-2026-59808 PUBLISHED

AVideo Authentication Bypass via Unkeyed Video Hash Disclosure

Assigner: VulnCheck
Reserved: 07.07.2026 Published: 22.08.2026 Updated: 22.08.2026

AVideo through commit 9c39d8c8 contains an authentication bypass vulnerability where deduplicateByEncoderQueueId() returns video_id_hash credentials for any video by encoder_queue_id without ownership verification, and useVideoHashOrLogin() converts this hash into passwordless login as the video owner. Attackers with upload permission can retrieve an administrator's video_id_hash by omitting the videos_id parameter, then use that hash in an unauthenticated request to gain administrative session access and modify system configuration.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

Product Status

Vendor WWBN
Product AVideo
Versions Default: unaffected
  • affected from 0 to 9c39d8c8b4c1f75540788d6b391740852ceb0732 (incl.)

Credits

  • santhreal reporter

References

Problem Types

  • Missing Authentication for Critical Function CWE