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.
Advisories

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Fixes

Solution

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Workaround

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History

Wed, 21 Jan 2026 21:45:00 +0000

Type Values Removed Values Added
Description 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.
Title CVAT vulnerable to XSS via skeleton SVG images
Weaknesses CWE-83
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-21T21:38:32.971Z

Reserved: 2026-01-13T18:22:43.979Z

Link: CVE-2026-23516

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-21T22:15:49.850

Modified: 2026-01-21T22:15:49.850

Link: CVE-2026-23516

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses