CVE-2026-86488: CWE-639 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.18634 iDOR via the watchRules and issueListConfig endpoints exposed private saved searches
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
JetBrains YouTrack versions prior to 2026.2.18634 contain an Insecure Direct Object Reference (iDOR) vulnerability identified as CVE-2026-86488. The flaw exists in the watchRules and issueListConfig endpoints, which improperly expose private saved searches to unauthorized users. The vulnerability has a CVSS v3.1 base score of 6.5, indicating a moderate severity with network attack vector, low attack complexity, requiring privileges, no user interaction, and impacts confidentiality but not integrity or availability.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized disclosure of private saved searches in YouTrack, potentially exposing sensitive information. There is no indication of impact on data integrity or system availability. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.18634. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on user action to apply the update. Patch status is not explicitly confirmed beyond the version mentioned; users should verify with JetBrains advisories for the latest remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-q74j-63h6-88mm
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86488"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f9115acd9273b49ff2bf0
Added to database: 09/08/2026, 04:37:41 UTC
Last enriched: 09/08/2026, 04:54:04 UTC
Last updated: 10/21/2026, 13:22:12 UTC
Views: 79
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.