CVE-2026-103496: CWE-639 in JetBrains YouTrack
In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications
AI Analysis
Technical Summary
This vulnerability (CWE-639) in JetBrains YouTrack affects versions prior to 2026.2.19422 and involves an insecure direct object reference in inbox threads. It permits unauthorized users with some privileges to access notifications of other users, potentially exposing sensitive information. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requires privileges, no user interaction, unchanged scope, and impacts confidentiality and integrity with low severity.
Potential Impact
An attacker with limited privileges can read notifications belonging to other users, leading to unauthorized disclosure of potentially sensitive information. There is no indication of impact on availability. The vulnerability does not appear to be actively exploited in the wild at this time.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.19422. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation guidance is provided by the vendor advisory.
CVE-2026-103496: CWE-639 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications
CVSS v3.1
Score 5.4medium
Affected software
JetBrains
YouTrack
pkg:maven/com.jetbrains/youtrackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-639) in JetBrains YouTrack affects versions prior to 2026.2.19422 and involves an insecure direct object reference in inbox threads. It permits unauthorized users with some privileges to access notifications of other users, potentially exposing sensitive information. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requires privileges, no user interaction, unchanged scope, and impacts confidentiality and integrity with low severity.
Potential Impact
An attacker with limited privileges can read notifications belonging to other users, leading to unauthorized disclosure of potentially sensitive information. There is no indication of impact on availability. The vulnerability does not appear to be actively exploited in the wild at this time.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.19422. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation guidance is provided by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-30T17:07:15.102Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abe7488a43b0b3b89bd1c62
Added to database: 10/01/2026, 14:56:08 UTC
Last enriched: 10/01/2026, 15:17:01 UTC
Last updated: 10/01/2026, 22:25:56 UTC
Views: 5
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