CVE-2026-100261: CWE-288 in JetBrains YouTrack
A vulnerability in JetBrains YouTrack prior to version 2026.2.18991 allows changing article visibility settings without having update permissions. This issue is classified under CWE-288 (Improper Authentication). The vulnerability has a CVSS 3.1 base score of 5.4 (medium severity), indicating limited confidentiality and integrity impact without availability impact. No known exploits are reported in the wild. The affected versions include all releases before 2026.2.18991.
AI Analysis
Technical Summary
CVE-2026-100261 is a medium severity vulnerability in JetBrains YouTrack before version 2026.2.18991 where an attacker with limited privileges can change article visibility settings without possessing the required update permission. This improper authentication flaw (CWE-288) could lead to unauthorized modification of visibility settings, potentially exposing or restricting access to articles improperly. The CVSS vector indicates network attack vector, low attack complexity, requiring low privileges and no user interaction, with limited confidentiality and integrity impact and no availability impact.
Potential Impact
The vulnerability allows unauthorized changes to article visibility settings, which may lead to unintended exposure or restriction of information within YouTrack. The impact is limited to confidentiality and integrity with no effect on availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.18991. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the update. No additional mitigation steps are indicated.
CVE-2026-100261: CWE-288 in JetBrains YouTrack
Description
A vulnerability in JetBrains YouTrack prior to version 2026.2.18991 allows changing article visibility settings without having update permissions. This issue is classified under CWE-288 (Improper Authentication). The vulnerability has a CVSS 3.1 base score of 5.4 (medium severity), indicating limited confidentiality and integrity impact without availability impact. No known exploits are reported in the wild. The affected versions include all releases before 2026.2.18991.
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
CVE-2026-100261 is a medium severity vulnerability in JetBrains YouTrack before version 2026.2.18991 where an attacker with limited privileges can change article visibility settings without possessing the required update permission. This improper authentication flaw (CWE-288) could lead to unauthorized modification of visibility settings, potentially exposing or restricting access to articles improperly. The CVSS vector indicates network attack vector, low attack complexity, requiring low privileges and no user interaction, with limited confidentiality and integrity impact and no availability impact.
Potential Impact
The vulnerability allows unauthorized changes to article visibility settings, which may lead to unintended exposure or restriction of information within YouTrack. The impact is limited to confidentiality and integrity with no effect on availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.18991. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the update. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-25T17:02:05.005Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abd2c302a4e24523d2ec2f7
Added to database: 09/30/2026, 15:35:12 UTC
Last enriched: 09/30/2026, 15:51:27 UTC
Last updated: 10/01/2026, 03:42:27 UTC
Views: 12
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