CVE-2026-100277
CRITICALCVSS 9.8/10EPSS 0.25%
Last modified
CVE-2026-100277 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jetbrains | Youtrack | < 2026.2.19197 |
References
- https://www.jetbrains.com/privacy-security/issues-fixed/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-100277?
In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
How severe is CVE-2026-100277?
CVE-2026-100277 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2026-100277?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-100277?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST