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TI-2026-46997 Aliases CVE-2026-65986

CVAT has stored XSS via annotation guide assets

Priority LOW 39CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution, Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434 and CWE-79.

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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00405 34th percentileScored 2026-11-07
Fix Fixed cvat (cvat-ai): 2.67.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
cvat-aicvat2.5.0 to before 2.67.02.67.0Patch availableCNA
  • cvat Vendorcvat-ai Affected 2.5.0 to before 2.67.0 Fixed in 2.67.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:cvat:computer_vision_annotation_tool:*:*:*:*:*:*:*:*——cvat-ai
  • cpe:2.3:a:cvat:computer_vision_annotation_tool:*:*:*:*:*:*:*:* Versions — — ·cvat-ai

Remediation

  • Fix · CNA cvat (cvat-ai) Fixed in 2.67.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65986

References

Other 2

  • TI-2021-20393 Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack KEVCVSS 3.1CRITICAL 9.0
  • TI-2022-13228 Server-Side Request Forgery Vulnerability in Computer Vision Annotation Tool (CVAT) CVSS 3.1CRITICAL 9.8
  • TI-2025-16854 CVAT allows remote code execution via tracker Nuclio functions CVSS 4.0HIGH 8.7
  • TI-2026-51357 CVAT: Stored XSS via annotation guides in audio tasks CVSS 4.0HIGH 8.5
  • TI-2026-18950 CVAT vulnerable to privilege escalation of users with staff status CVSS 4.0HIGH 8.5
  • TI-2026-18940 CVAT vulnerable to XSS via skeleton SVG images CVSS 4.0HIGH 8.6
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences