CVE-2026-55173 AVideo incomplete fix for CVE-2026-33482: sanitizeFFmpegCommand still allows a single '&' (background operator), giving OS command execution at the same execAsync sh -c sink

WWBN AVideo is an open source video platform. Versions 29.0 and below remain vulnerable to OS command injection because the fix for CVE-2026-33482 was incomplete and still does not neutralize a single & the shell background operator. CVE-2026-33482 reported that sanitizeFFmpegCommand...

AVideo has an incomplete fix of CVE-2026-33482: sanitizeFFmpegCommand still allows a single '&' (background operator), giving OS command execution at the same execAsync sh -c sink

Summary The fix for CVE-2026-33482 GHSA-pmj8-r2j7-xg6c is incomplete. That advisory reported that sanitizeFFmpegCommand plugin/API/standAlone/functions.php failed to strip $... command substitution, allowing OS command injection at the execAsync sh -c sink. The fix commit 25c8ab90 added $, , , , ...

GHSA-WC3F-XC32-435F AVideo has an incomplete fix of CVE-2026-33482: sanitizeFFmpegCommand still allows a single '&' (background operator), giving OS command execution at the same execAsync sh -c sink

Summary The fix for CVE-2026-33482 GHSA-pmj8-r2j7-xg6c is incomplete. That advisory reported that sanitizeFFmpegCommand plugin/API/standAlone/functions.php failed to strip $... command substitution, allowing OS command injection at the execAsync sh -c sink. The fix commit 25c8ab90 added $, , , , ...