EUVD-2026-72511
GHSA-gf9f-9v25-gm42
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Network-accessible API requires low-privileged authentication; integrity-only impact as unauthorized articles can be written but no data is read or service disrupted.
Primary rating from Vendor (JetBrains).
CVSS VectorVendor: JetBrains
Lifecycle Timeline
3DescriptionCVE.org
In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects
AnalysisAI
Missing server-side permission checks in JetBrains YouTrack before 2026.2.18687 allow any authenticated user to create knowledge base articles inside projects they are not authorized to access. The flaw is rooted in CWE-862 (Missing Authorization), where the article-creation endpoint omits the necessary access control validation against the caller's project permissions. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid authenticated YouTrack account at any privilege level (PR:L); unauthenticated external attackers cannot exploit this directly. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.5 score with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N accurately reflects the realistic risk: network-accessible, low complexity, but strictly limited to authenticated users. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade JetBrains YouTrack to version 2026.2.18687 or later, which resolves the missing permission check. … Detailed patch versions, workarounds, and compensating controls in full report. |
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In JetBrains YouTrack before 2020.5.3123, server-side template injection (SSTI) was possible, which could lead to code e
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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
In JetBrains YouTrack before 2021.1.11111, sandboxing in workflows was insufficient. Rated critical severity (CVSS 9.1),
Privilege escalation in JetBrains YouTrack before version 2026.2.18634 enables authenticated low-privileged users to alt
Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
Leaving vuln.today