CVE-2025-23045: CVAT allows remote code execution via tracker Nuclio functions

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-28 · updated 2026-06-17
Weakness: CWE-502

Description

Computer Vision Annotation Tool (CVAT) is an interactive video and image annotation tool for computer vision. An attacker with an account on an affected CVAT instance is able to run arbitrary code in the context of the Nuclio function container. This vulnerability affects CVAT deployments that run any of the serverless functions of type tracker from the CVAT Git repository, namely TransT and SiamMask. Deployments with custom functions of type tracker may also be affected, depending on how they handle state serialization. If a function uses an unsafe serialization library such as pickle or jsonpickle, it's likely to be vulnerable. Upgrade to CVAT 2.26.0 or later. If you are unable to upgrade, shut down any instances of the TransT or SiamMask functions you're running.

Affected products

Cvat Computer Vision Annotation Tool: from 1.1.0 before 2.26.0 — fixed in 2.26.0

How to fix

Upgrade to a fixed version: Cvat Computer Vision Annotation Tool 2.26.0. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2025-23045 or the next vulnerability affects your stack