How severe is CVE-2026-23526?

CVE-2026-23526 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-23526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23526?

CVE-2026-23526 affects Cvat Computer Vision Annotation Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-23526 have an EU (EUVD) identifier?

Yes. CVE-2026-23526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3773.

When was CVE-2026-23526 published?

CVE-2026-23526 was published on 2026-01-21 and last updated on 2026-06-17.

CVE-2026-23526

CVE-2026-23526 is a high-severity vulnerability in Cvat Computer Vision Annotation Tool with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-267.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.5
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3773
Weakness: CWE-267
Affected product: Cvat Computer Vision Annotation Tool
Published: 2026-01-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-23526?: 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.
How severe is CVE-2026-23526?: CVE-2026-23526 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-23526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23526?: CVE-2026-23526 affects Cvat Computer Vision Annotation Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-23526 have an EU (EUVD) identifier?: Yes. CVE-2026-23526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3773.
When was CVE-2026-23526 published?: CVE-2026-23526 was published on 2026-01-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cvat:computer_vision_annotation_tool:*:*:*:*:*:*:*:*

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