How severe is CVE-2026-23516?

CVE-2026-23516 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-23516 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23516?

CVE-2026-23516 affects Cvat Computer Vision Annotation Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23516?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-23516 have an EU (EUVD) identifier?

Yes. CVE-2026-23516 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3774.

When was CVE-2026-23516 published?

CVE-2026-23516 was published on 2026-01-21 and last updated on 2026-06-17.

CVE-2026-23516

CVE-2026-23516 is a medium-severity vulnerability in Cvat Computer Vision Annotation Tool with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 8.6
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3774
Weakness: CWE-79
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 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.

Frequently asked questions

What is CVE-2026-23516?: 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.
How severe is CVE-2026-23516?: CVE-2026-23516 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-23516 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23516?: CVE-2026-23516 affects Cvat Computer Vision Annotation Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23516?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-23516 have an EU (EUVD) identifier?: Yes. CVE-2026-23516 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3774.
When was CVE-2026-23516 published?: CVE-2026-23516 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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