CVE-2026-100275: JetBrains YouTrack · Cross-site Scripting
Affects JetBrains YouTrackSource CVE Database V5
Not known to be exploited · CVSS 6.9 Medium : upgrade to 2026.2.19197 when convenient.
Data as of 14 Nov 2026, 20:43 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2026.2.19197
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/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 2026.2.19197.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsYouTrack | Affected
| Fixed in
|
AI-suggested
A fix is available in JetBrains YouTrack version 2026.2.19197. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Description
In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible