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CVE-2026-86478

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.

在 JetBrains YouTrack 2025.3.161254 及之前版本（包括 2026.1.14042）中，YouTrack Helpdesk 存在身份认证不当的漏洞。该漏洞允许未经身份验证的账户接管，攻击者可利用自声明的邮箱地址来实现这一点。

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1 AI

T1040 · Network Sniffing

Affected Version Matrix 1

VendorProduct Version RangeStatus
JetBrains YouTrack < 2025.3.161254, 2026.1.14042 affected
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I. Basic Information for CVE-2026-86478

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
JetBrains YouTrack 0 ~ 2025.3.161254, 2026.1.14042 -

II. Public POCs for CVE-2026-86478

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III. Intelligence Information for CVE-2026-86478

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Vendor Pages for CVE-2026-86478 (1)

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

CVE-2026-86480 9.8 CRITICAL JetBrains Hub <2026.2.52442 认证绕过及权限提升漏洞
CVE-2026-86482 8.8 HIGH JetBrains YouTrack 2026.2.18634前越权漏洞
CVE-2026-86492 8.5 HIGH JetBrains YouTrack 2026.2.18634 前跨租户令牌窃取
CVE-2026-86502 8.4 HIGH IntelliJ IDEA 2026.2.2前gRPC服务认证缺失致本地代码执行
CVE-2026-86479 8.0 HIGH YouTrack 2026.2等版本存在IDOR授权缺陷
CVE-2026-86504 7.8 HIGH IntelliJ IDEA 2026.2.2前远程代码执行
CVE-2026-86498 7.7 HIGH JetBrains YouTrack 低版本 PPUT 请求权限绕过漏洞
CVE-2026-86494 7.7 HIGH JetBrains YouTrack 2026.2.18634 前克隆白板越权漏洞
CVE-2026-86497 6.8 MEDIUM YouTrack 2026.2.18769前凭据泄露漏洞
CVE-2026-86490 6.5 MEDIUM YouTrack低于2026.2.18634权限检查不当
CVE-2026-86488 6.5 MEDIUM JetBrains YouTrack 低版本 iDOR 漏洞
CVE-2026-86495 6.5 MEDIUM JetBrains YouTrack 2026.2.18687前权限检查缺失
CVE-2026-86493 6.5 MEDIUM JetBrains YouTrack权限检查缺陷
CVE-2026-86489 6.5 MEDIUM JetBrains YouTrack 2026.2.18634 之前 IDOR 漏洞
CVE-2026-86506 5.9 MEDIUM GoLand 2026.2.2.1前 pprof服务缺失认证
CVE-2026-86500 5.5 MEDIUM JetBrains YouTrack 2026.1.14047 前 权限提升
CVE-2026-86483 5.4 MEDIUM JetBrains YouTrack 2026.2.18634前存储型XSS漏洞
CVE-2026-86484 4.6 MEDIUM JetBrains YouTrack 2026.2.18634前存储型XSS
CVE-2026-86496 4.3 MEDIUM JetBrains YouTrack 2026.2.18769 前访问控制漏洞
CVE-2026-86481 4.3 MEDIUM YouTrack 2026.2.18634 之前URL复用致项目图标泄露

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

IV. Related Vulnerabilities

Same product: YouTrack
Same vendor: JetBrains
Same weakness: CWE-290

V. Comments for CVE-2026-86478

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