How severe is CVE-2025-49135?

CVE-2025-49135 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-49135 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-2025-49135?

CVE-2025-49135 affects Cvat Computer Vision Annotation Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-49135?

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

Does CVE-2025-49135 have an EU (EUVD) identifier?

Yes. CVE-2025-49135 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28282.

When was CVE-2025-49135 published?

CVE-2025-49135 was published on 2025-06-25 and last updated on 2026-06-17.

CVE-2025-49135

CVE-2025-49135 is a medium-severity vulnerability in Cvat Computer Vision Annotation Tool with a CVSS 3.x base score of 6.5. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 5.3
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28282
Weakness: CWE-639
Affected product: Cvat Computer Vision Annotation Tool
Published: 2025-06-25
Last modified: 2026-06-17

Description

CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.2.0 through 2.39.0 have no validation during the import process of a project or task backup to check that the filename specified in the query parameter refers to a TUS-uploaded file belonging to the same user. As a result, if an attacker with a CVAT account and a `user` role knows the filenames of other users' uploads, they could potentially access and steal data by creating projects or tasks using those files. This issue does not affect annotation or dataset TUS uploads, since in this case object-specific temporary directories are used. Users should upgrade to CVAT 2.40.0 or a later version to receive a patch. No known workarounds are available.

Frequently asked questions

What is CVE-2025-49135?: CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.2.0 through 2.39.0 have no validation during the import process of a project or task backup to check that the filename specified in the query parameter refers to a TUS-uploaded file belonging to the same user. As a result, if an attacker with a CVAT account and a `user` role knows the filenames of other users' uploads, they could potentially access and steal data by creating projects or tasks using those files. This issue does not affect annotation or dataset TUS uploads, since in this case object-specific temporary directories are used. Users should upgrade to CVAT 2.40.0 or a later version to receive a patch. No known workarounds are available.
How severe is CVE-2025-49135?: CVE-2025-49135 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-49135 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-2025-49135?: CVE-2025-49135 affects Cvat Computer Vision Annotation Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-49135?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-49135 have an EU (EUVD) identifier?: Yes. CVE-2025-49135 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28282.
When was CVE-2025-49135 published?: CVE-2025-49135 was published on 2025-06-25 and last updated on 2026-06-17.

References

Affected products (1)

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

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