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CVE-2026-44369— CVAT: Stored XSS via annotation guides

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开源的一个数据处理工具。 CVAT.ai CVAT 2.5.0版本至2.63.0版本存在安全漏洞，该漏洞源于能够在任务上创建或编辑注释指南的攻击者可添加恶意JavaScript代码，导致在打开注释指南的浏览器中执行，并以受害者用户权限向CVAT发出任意请求。

AI Predicted 6.1 Difficulty: Easy EPSS 0.41% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
cvat-ai cvat >= 2.5.0, < 2.64.0 affected
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I. Basic Information for CVE-2026-44369

Vulnerability Information
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Vulnerability Title
CVAT: Stored XSS via annotation guides
Source: CVE Program / CVE List V5
Vulnerability Description
CVAT is an open source interactive video and image annotation tool for computer vision. From 2.5.0 to 2.63.0, an attacker who is able to create or edit an annotation guide on a task is able to add malicious JavaScript code, which will then run in the browser of anyone who opens this annotation guide. This code will be able to make arbitrary requests to CVAT with the victim user's privileges. This vulnerability is fixed in 2.64.0.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
CVAT.ai CVAT 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CVAT.ai CVAT是CVAT.ai开源的一个数据处理工具。 CVAT.ai CVAT 2.5.0版本至2.63.0版本存在安全漏洞，该漏洞源于能够在任务上创建或编辑注释指南的攻击者可添加恶意JavaScript代码，导致在打开注释指南的浏览器中执行，并以受害者用户权限向CVAT发出任意请求。
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

Vendor Product Affected Versions CPE Subscribe
cvat-ai cvat >= 2.5.0, < 2.64.0 -

II. Public POCs for CVE-2026-44369

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III. Intelligence Information for CVE-2026-44369

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Patches & Fixes for CVE-2026-44369 (1)

Vendor Advisories for CVE-2026-44369 (1)

IV. Related Vulnerabilities

Same product: cvat
Same vendor: cvat-ai
Same weakness: CWE-80

V. Comments for CVE-2026-44369

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