SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-100275

In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible

MEDIUM 4.8EPSS 0.19%

Does this matter?

Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.

Description

In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible

CVSS 3.1
4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS
0.19% probability · 9th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
jetbrains/youtrack
Source
cve@jetbrains.com
EPSS trend
0%3%5%1 October 2026: 0.30%26 October 2026: 0.19%1 October 202626 October 2026

EPSS moved from 0.3% on 1 October 2026 to 0.2% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.