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TI-2026-18950 Aliases CVE-2026-23526

CVAT vulnerable to privilege escalation of users with staff status

Priority LOW 39CWE-267Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

CVAT is an open source interactive video and image annotation tool for computer vision. In versions 1.0.0 through 2.54.0, users that have the staff status may freely change their permissions, including giving themselves superuser status and joining the admin group, which gives them full access to the data in the CVAT instance. Version 2.55.0 fixes the issue. As a workaround, review the list of users with staff status and revoke it from any users that are not expected to have superuser privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd percentileScored 2026-11-07
Fix Fixed cvat (cvat-ai): 2.55.0

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-aicvat1.0.0 to before 2.55.02.55.0Patch availableCNA
  • cvat Vendorcvat-ai Affected 1.0.0 to before 2.55.0 Fixed in 2.55.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cvat:computer_vision_annotation_tool:*:*:*:*:*:*:*:*1.0.0 to before 2.55.0Vulnerablecvat-ai
  • cpe:2.3:a:cvat:computer_vision_annotation_tool:*:*:*:*:*:*:*:* Versions 1.0.0 to before 2.55.0 Vulnerable ·cvat-ai

Remediation

  • Fix · CNA cvat (cvat-ai) Fixed in 2.55.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23526

References

Patch 1

Advisory 1

  • 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-2026-18940 CVAT vulnerable to XSS via skeleton SVG images CVSS 4.0HIGH 8.6
  • TI-2024-24691 CVAT SSRF via custom cloud storage endpoints CVSS 3.1HIGH 8.5
  • TI-2024-24818 CVAT's export and backup-related API endpoints are susceptible to CSRF CVSS 3.1HIGH 7.1
See all 15 →

Sources

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