Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Network-reachable via web/API, low complexity, requires authenticated low-privilege account; only confidentiality is impacted at low severity with no integrity or availability effect.
Primary rating from Vendor (JetBrains).
CVSS VectorNVD
Lifecycle Timeline
3DescriptionNVD
In JetBrains YouTrack before 2026.2.16593 improper access control allowed reading saved queries and tags
AnalysisAI
Improper access control in JetBrains YouTrack before version 2026.2.16593 permits authenticated low-privileged users to read saved queries and tags outside their authorized scope. The flaw stems from missing authorization checks (CWE-862), meaning the application fails to verify whether the requesting user holds the required permissions before serving these resources over the network. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog, though the network-accessible nature of the issue means any authenticated user on an exposed YouTrack instance is a potential threat actor.
Technical ContextAI
JetBrains YouTrack is a web-based issue tracking and project management platform. Its saved queries (stored search filters) and tags are access-controlled resources typically scoped to individual users or projects. CWE-862 (Missing Authorization) indicates the application performs no - or an insufficient - authorization check when a request is made to retrieve these objects, even though the user is authenticated. The affected component is the server-side logic responsible for serving saved query and tag data, reachable over the network via YouTrack's web or API interface. The CPE cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:* covers all prior releases up to the fixed build 2026.2.16593.
RemediationAI
Upgrade JetBrains YouTrack to build 2026.2.16593 or later, which contains the vendor-released patch for this issue. The authoritative advisory and patch details are available at https://www.jetbrains.com/privacy-security/issues-fixed/. If an immediate upgrade is not feasible, organizations should restrict YouTrack access to trusted, internally managed user accounts only, and audit YouTrack user roles to ensure no untrusted or external accounts exist that could leverage this flaw. Restricting network access to the YouTrack instance via firewall or VPN reduces exposure but does not eliminate the vulnerability for internal threat actors. No workaround is documented by the vendor beyond applying the patch.
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Authentication bypass in JetBrains YouTrack allows attackers to obtain full administrative access by leveraging a direct
In JetBrains YouTrack before 2024.3.51866 system takeover was possible through path traversal in plugin sandbox. Rated c
JetBrains YouTrack before 2021.4.40426 was vulnerable to SSTI (Server-Side Template Injection) via FreeMarker templates.
JetBrains YouTrack before 2021.3.23639 is vulnerable to Host header injection. Rated critical severity (CVSS 9.8), this
In JetBrains YouTrack before 2020.5.3123, server-side template injection (SSTI) was possible, which could lead to code e
An SSRF attack was possible on a JetBrains YouTrack server. Rated critical severity (CVSS 9.8), this vulnerability is re
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An Insecure Direct Object Reference, with Authorization Bypass through a User-Controlled Key, was possible in JetBrains
A query injection was possible in JetBrains YouTrack. Rated critical severity (CVSS 9.8), this vulnerability is remotely
Unauthenticated database backup disclosure in JetBrains YouTrack before 2025.3.156085, 2026.1.13913, and 2026.2.18112 al
In JetBrains YouTrack before 2021.1.11111, sandboxing in workflows was insufficient. Rated critical severity (CVSS 9.1),
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-39657
GHSA-qpjq-4h8h-5xxf