CVE-2026-100259
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by...
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by users with view-only access
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by users with view-only access
- Record
CVE-2026-100259- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-90003
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by users with view-only access
- Record
EUVD-2026-90003- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9vmv-xhw6-9wrm
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by...
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by users with view-only access
- Record
GHSA-9vmv-xhw6-9wrm- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
In JetBrains YouTrack before 2026.2.18991 improper access control on Gantt chart allowed edits by users with view-only access
- Record
CVE-2026-100259- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-100259 is a medium vulnerability (CVSS 4.3) in Jetbrains Youtrack, published September 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 9th percentile. No source names a fixed version.