CVE-2026-86478
CRITICALCVSS 9.8/10EPSS 0.36%
Last modified
CVE-2026-86478 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
Description
In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| JetBrains | YouTrack | < 2025.3.161254, 2026.1.14042 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-86478?
In JetBrains YouTrack before 2025.3.161254,
2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address
How severe is CVE-2026-86478?
CVE-2026-86478 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.
How do I fix CVE-2026-86478?
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
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-2026-86478?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST