XSS in Cvat Computer Vision Annotation Tool
CVE-2026-23516
CVAT is an open source interactive video and image annotation tool for computer vision. In versions 2.2.0 through 2.54.0, an attacker is able to execute arbitrary JavaScript in a victim user's CVAT UI session, provided that they are able to create a maliciously crafted label in a CVAT task or project, then get the victim user to either edit that label, or view a shape that refers to that label; and/or get the victim user to upload a maliciously crafted SVG image when configuring a skeleton. This gives the attacker temporary access to all CVAT resources that the victim user can access. Version 2.55.0 fixes the issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (5.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Cvat Computer Vision Annotation Tool
- Cvat-Ai Cvat — versions >= 2.2.0, < 2.55.0
Weakness classification (CWE)
References
- github.com/cvat-ai/cvat/security/advisories/GHSA-3m7p-wx65-c7mp (Patch, Third Party Advisory)
- github.com/cvat-ai/cvat/commit/40800707fe39e3ff76c8d036eb953eb12d764e70 (Patch)
Frequently asked questions
- What is CVE-2026-23516?
- CVE-2026-23516 is a medium-severity vulnerability in Cvat Computer Vision Annotation Tool, classified under Improper Neutralization of Script in Attributes in a Web Page. CVSS score: 5.4/10. Published 2026-01-21.
- How severe is CVE-2026-23516?
- Medium severity. CVSS v3 base score is 5.4 out of 10.