High 8.5Published Aug 20, 2026

CVE-2026-73220CVAT: Stored XSS via annotation guides in audio tasks

Updated under an hour ago (2026-10-19 09:20 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-80
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

cvat-ai cvat cvat_ai:cvat (from the name)	from 2.68.0, < 2.70.0	CNA record

References

https://github.com/cvat-ai/cvat/security/advisories/GHSA-chxx-45vm-qhc9x-refsource-confirm
https://github.com/cvat-ai/cvat/pull/10893x-refsource-misc
https://github.com/cvat-ai/cvat/commit/33aaa1987ea89a4d229bf4c19fcbe6b04ed55b42x-refsource-misc
https://github.com/cvat-ai/cvat/releases/tag/v2.70.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.