Description
CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.5.0 through 2.66.0 contain a XSS vulnerability that can be accessed through annotation guide assets. When CVAT serves the files attached to an annotation guide, it labels them with a media type ( Content-Type ) that the attacker can influence, so instead of treating an uploaded file as plain data, the victim's browser can be told to treat it as an HTML page and run any JavaScript inside it. This issue has been fixed in version 2.67.0.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/cvat-ai/cvat/security/advisories/GHSA-w6mx-95ff-72cv
X_Refsource_Misc x_refsource_misc
https://github.com/cvat-ai/cvat/commit/44d717ad3a9d914f1cb2593ce09efd87d0b9159e
Scores
CVSS v4
8.5
EPSS
0.0024
EPSS Percentile
15.0%
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-434
CWE-79
Status
published
Products (1)
cvat-ai/cvat
>= 2.5.0, < 2.67.0
Published
Aug 04, 2026
Tracked Since
Aug 05, 2026