---
id: CVE-2026-65986
title: >-
  CVAT is an open source interactive video and image annotation tool for
  computer vision
summary: >-
  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 t…
severity: none
cwe:
  - CWE-79
  - CWE-434
published: '2026-08-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:41:31.497'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65986'
references:
  - url: >-
      https://github.com/cvat-ai/cvat/commit/44d717ad3a9d914f1cb2593ce09efd87d0b9159e
    label: security-advisories@github.com
  - url: 'https://github.com/cvat-ai/cvat/security/advisories/GHSA-w6mx-95ff-72cv'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00405
epssPercentile: 0.31935
ingestedAt: '2026-09-08T21:11:12.266Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.