CVE-2026-65986: high-severity vulnerability in cvat-ai cvat
CVAT has stored XSS via annotation guide assets
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.5epss 0.4%
CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.5.0 through 2.66.0 contain a XSS vulnerability that can be accessed through annotation guide assets. When CVAT serves the files attached to an annotation guide, it labels them with a media type ( Content-Type ) that the attacker can influence, so instead of treating an uploaded file as plain data, the victim's browser can be told to treat it as an HTML page and run any JavaScript inside it. This issue has been fixed in version 2.67.0.
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
Affected products
cvat-ai · cvatRelated CVEs — cvat-ai cvat
In the same product, most dangerous first.
CVE-2022-31188HIGHServer-Side Request Forgery Vulnerability in Computer Vision Annotation Tool (CVAT)EPSS 48.2%CVE-2025-23045HIGHCVAT allows remote code execution via tracker Nuclio functionsEPSS 0.5%CVE-2026-73220HIGHCVAT: Stored XSS via annotation guides in audio tasksEPSS 0.5%CVE-2026-73219MEDIUMCVAT: Denial of service with regards to automatic annotationEPSS 0.5%CVE-2026-47682HIGHCVAT: Missing path-containment validation in multiple entry points allows arbitrary path writesEPSS 0.5%CVE-2026-73221MEDIUMCVAT: Flawed authorization logic in endpoints related to lambda requestsEPSS 0.4%