CVE-2026-100258: JetBrains YouTrack · CWE-201
Affects JetBrains YouTrackSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 2026.2.18991 when convenient.
Data as of 14 Nov 2026, 20:43 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2026.2.18991
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Upgrade JetBrains YouTrack to 2026.2.18991.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsYouTrack | Affected
| Fixed in
|
AI-suggested
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, manual patching is required. Patch status is confirmed by the version information provided.
Description
In JetBrains YouTrack before 2026.2.18991 missing authorisation allowed read-only users to read project settings