CVE-2026-73221— CVAT: Flawed authorization logic in endpoints related to lambda requests
Quick assessment
Affected
cvat-ai cvat
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
cvat.ai CVAT是cvat.ai组织开源的一款计算机视觉标注工具。 cvat.ai CVAT 2.17.0版本至2.72.0之前版本存在授权问题漏洞，该漏洞源于授权验证不当，可能导致具有Worker角色的用户使用可预测的基于任务的请求ID访问无权访问的任务或作业的自动注释请求，并取消其他用户发起的请求。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-73221
Vulnerability Information
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Vulnerability Title
CVAT: Flawed authorization logic in endpoints related to lambda requests
Source: CVE Program / CVE List V5
Vulnerability Description
CVAT is an open source interactive video and image annotation tool for computer vision. From 2.17.0 until 2.72.0, a user with the Worker role can use predictable task-based request IDs with the lambda request retrieve and destroy endpoints to view automatic annotation requests for tasks or jobs the user cannot access and cancel requests initiated by other users. This issue is fixed in version 2.72.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
cvat.ai CVAT 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cvat.ai CVAT是cvat.ai组织开源的一款计算机视觉标注工具。 cvat.ai CVAT 2.17.0版本至2.72.0之前版本存在授权问题漏洞，该漏洞源于授权验证不当，可能导致具有Worker角色的用户使用可预测的基于任务的请求ID访问无权访问的任务或作业的自动注释请求，并取消其他用户发起的请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-73221
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Patches & Fixes for CVE-2026-73221 (2)
Vendor Advisories for CVE-2026-73221 (1)
Vendor Pages for CVE-2026-73221 (1)
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🔗 Release v2.72.0 · cvat-ai/cvat · GitHub x_refsource_MISC
IV. Related Vulnerabilities
Same product: cvat
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CVE-2026-73220
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CVE-2026-73219
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CVAT has stored XSS via annotation guide assets -
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CVAT: Missing path-containment validation in multiple entry -
CVE-2026-58373
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Same vendor: cvat-ai
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CVE-2026-73220
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CVE-2026-58373
CVAT < 2.69.0 - Missing Authorization on Quality Reports par
Same weakness: CWE-863
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V. Comments for CVE-2026-73221
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