CVE-2026-100275
CVE-2026-100275 is a medium-severity vulnerability in Jetbrains Youtrack with a CVSS 3.x base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.9)
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Jetbrains Youtrack
- Published:
- Last modified:
Description
In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible
Frequently asked questions
- What is CVE-2026-100275?
- In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible
- How severe is CVE-2026-100275?
- CVE-2026-100275 has a CVSS 3.x base score of 6.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
- Is CVE-2026-100275 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-100275?
- CVE-2026-100275 affects Jetbrains Youtrack. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-100275?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-100275 published?
- CVE-2026-100275 was published on 2026-09-30 and last updated on 2026-10-02.
References
Affected products (1)
- cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:*
More vulnerabilities in Jetbrains Youtrack
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