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8.6

CVAT audio guides can run malicious code

CVE-2026-73220 · published 2 months ago
Summary

In CVAT versions 2.68.0 through 2.70.0, the part of the program that shows instructions for audio annotation lets a user embed hidden JavaScript. That code runs when another user views the guide and can perform actions in CVAT using that user’s rights. Update CVAT to version 2.70.0 or later to stop this behavior.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
cvat-ai cvat >= 2.68.0, < 2.70.0
Original advisory text
CVAT: Stored XSS via annotation guides in audio tasks
CVAT is an open source interactive video and image annotation tool for computer vision. From 2.68.0 until 2.70.0, the audio-task annotation guide renderer in cvat-ui/src/audio/components/annotation-page/audio-workspace/top-bar/audio-right-group.tsx passes attacker-controlled guide Markdown to MDEditor without the rehype-sanitize plugin. A user who can create or edit an annotation guide can store malicious JavaScript that executes when another user opens the guide. The script can issue arbitrary CVAT requests with the victim user's privileges. This issue is fixed in version 2.70.0.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
8.6 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-80Basic XSS
Timeline
Published20 Aug 2026
Updated4 Nov 2026
First seen20 Aug 2026
Sources
CVE-2026-73220 · NVD
CVE-2026-73220 · MITRE
CVE-2026-73220 · OSV
GHSA-chxx-45vm-qhc9 · GHSA
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