High severity · published Aug 20, 2026
CVE-2026-73220
CVAT: Stored XSS via annotation guides in audio tasks
8.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CV
cvat · cvat-ai
>= 2.68.0, < 2.70.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73220
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73220
github.com
https://github.com/cvat-ai/cvat/commit/33aaa1987ea89a4d229bf4c19fcbe6b04ed55b42
github.com
https://github.com/cvat-ai/cvat/pull/10893
github.com
https://github.com/cvat-ai/cvat/releases/tag/v2.70.0
github.com
https://github.com/cvat-ai/cvat/security/advisories/GHSA-chxx-45vm-qhc9
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