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CVE-2026-86484

Quick assessment

Affected
JetBrains YouTrack
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.

JetBrains YouTrack是捷克JetBrains公司的一款项目管理软件。 JetBrains YouTrack 2026.2.18634之前版本存在跨站脚本漏洞，该漏洞源于受让人姓名中的AngularJS模板注入，导致存储型跨站脚本。

CVSS 4.6 · Medium EPSS 0.64% · P50

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
JetBrains YouTrack < 2026.2.18634 affected
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I. Basic Information for CVE-2026-86484

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In JetBrains YouTrack before 2026.2.18634 angularJS template injection in assignee names led to stored XSS
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
JetBrains YouTrack 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JetBrains YouTrack是捷克JetBrains公司的一款项目管理软件。 JetBrains YouTrack 2026.2.18634之前版本存在跨站脚本漏洞，该漏洞源于受让人姓名中的AngularJS模板注入，导致存储型跨站脚本。
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
JetBrains YouTrack 0 ~ 2026.2.18634 -

II. Public POCs for CVE-2026-86484

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III. Intelligence Information for CVE-2026-86484

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Vendor Pages for CVE-2026-86484 (1)

Same Patch Batch · JetBrains · 2026-09-07 · 29 CVEs total

CVE-2026-86478 9.8 CRITICAL JetBrains YouTrack 授权问题漏洞
CVE-2026-86480 9.8 CRITICAL JetBrains Hub 授权问题漏洞
CVE-2026-86482 8.8 HIGH JetBrains YouTrack 权限许可和访问控制问题漏洞
CVE-2026-86492 8.5 HIGH JetBrains YouTrack 会话机制问题漏洞
CVE-2026-86502 8.4 HIGH JetBrains IntelliJ IDEA 授权问题漏洞
CVE-2026-86479 8.0 HIGH JetBrains YouTrack 授权问题漏洞
CVE-2026-86504 7.8 HIGH JetBrains IntelliJ IDEA 软件供应链问题漏洞
CVE-2026-86498 7.7 HIGH JetBrains YouTrack 授权问题漏洞
CVE-2026-86494 7.7 HIGH JetBrains YouTrack 授权问题漏洞
CVE-2026-86497 6.8 MEDIUM JetBrains YouTrack 信息泄露漏洞
CVE-2026-86490 6.5 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-86495 6.5 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-86493 6.5 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-86488 6.5 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-86489 6.5 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-86506 5.9 MEDIUM JetBrains GoLand 授权问题漏洞
CVE-2026-86500 5.5 MEDIUM JetBrains YouTrack 权限许可和访问控制问题漏洞
CVE-2026-86483 5.4 MEDIUM JetBrains YouTrack 跨站脚本漏洞
CVE-2026-86496 4.3 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-86481 4.3 MEDIUM JetBrains YouTrack 授权问题漏洞

Showing top 20 of 29 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: YouTrack
Same vendor: JetBrains
Same weakness: CWE-79

V. Comments for CVE-2026-86484

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