CVE-2026-86479: CWE-862 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.18788, 2026.1.14055, 2025.3.161254 missing authorisation allowed access to restricted REST API resources via IDOR
CVSS v3.1
Score 8.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86479 is an Insecure Authorization vulnerability in JetBrains YouTrack that affects versions prior to 2026.2.18788, 2026.1.14055, and 2025.3.161254. The flaw allows users with limited privileges (PR:L) to access restricted REST API resources without proper authorization via an Insecure Direct Object Reference (IDOR). The vulnerability has a CVSS 3.1 score of 8.1, indicating high impact on confidentiality and integrity but no impact on availability. There is no vendor advisory or patch information provided in the data, and the product is not a cloud service, so remediation status is unknown.
Potential Impact
Exploitation of this vulnerability could lead to unauthorized disclosure and modification of sensitive data accessible through the REST API in affected YouTrack versions. The vulnerability does not affect system availability. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to YouTrack REST API endpoints to trusted users and monitor for unusual access patterns related to API resource IDs.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fxcm-p8cw-r92m
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86479"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f9115acd9273b49ff2bf8
Added to database: 09/08/2026, 04:37:41 UTC
Last enriched: 09/08/2026, 04:52:14 UTC
Last updated: 10/22/2026, 13:15:24 UTC
Views: 96
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.