CVE-2026-54859
CRITICALCVSS 9.8/10
Last modified
CVE-2026-54859 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Unauthenticated PHP Object Injection in Preservation <= 1.15 versions..
Description
Unauthenticated PHP Object Injection in Preservation <= 1.15 versions.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-54859?
Unauthenticated PHP Object Injection in Preservation <= 1.15 versions.
How severe is CVE-2026-54859?
CVE-2026-54859 has a CVSS score of 9.8/10 (CRITICAL severity).
How do I fix CVE-2026-54859?
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
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- 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-2026-54859?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST