CVE-2026-100277

In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-25)

CWE

CWE-863

Published

2026-09-30

Modified

2026-10-02

Record from

the NVD, synced 2026-10-19

Affected

• jetbrains:youtrack

References

• https://www.jetbrains.com/privacy-security/issues-fixed/

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