CVE-2026-95806
Last modified
CVE-2026-95806 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. MISP ships with PHP's phar stream wrapper registered in both its web entry point and its console entry point. The phar stream wrapper causes PHP to treat a phar archive as a directory, which has two security consequences: - any filesystem operation on a caller-influenced path that resolves to a phar archive triggers an implicit unserialize() call, creating a deserialization sink; - a relocated application root can reach executable code inside an uploaded phar file, enabling arbitrary code execution as the web user. No component of MISP, the vendored CakePHP framework, or any runtime-loaded library reads or constructs phar archives. The wrapper therefore serves no legitimate purpose in the MISP runtime and exists solely as an available primitive for an attacker who can influence a filesystem path argument..
Description
MISP ships with PHP's phar stream wrapper registered in both its web entry point and its console entry point. The phar stream wrapper causes PHP to treat a phar archive as a directory, which has two security consequences: - any filesystem operation on a caller-influenced path that resolves to a phar archive triggers an implicit unserialize() call, creating a deserialization sink; - a relocated application root can reach executable code inside an uploaded phar file, enabling arbitrary code execution as the web user. No component of MISP, the vendored CakePHP framework, or any runtime-loaded library reads or constructs phar archives. The wrapper therefore serves no legitimate purpose in the MISP runtime and exists solely as an available primitive for an attacker who can influence a filesystem path argument.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-95806?
How severe is CVE-2026-95806?
How do I fix CVE-2026-95806?
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.
Related CVEs from 2026
- CVE-2026-95754In MISP's UsersController login() method, the pre-authentica…6.9
- CVE-2026-9576The Fluent Booking WordPress plugin before 2.1.2 does not v…4.9
- CVE-2026-9577The Post Status Notifier Lite WordPress plugin before 1.13.0…4.8
- CVE-2026-9579A vulnerability was found in JeecgBoot up to 3.9.1. Impacted…6.3
- CVE-2026-9580A vulnerability was determined in JeecgBoot up to 3.9.1. The…7.3
- CVE-2026-95805A typo in the MISP ACLComponent access control configuration…5.3
- CVE-2026-9581A vulnerability was identified in JeecgBoot up to 3.9.1. The…6.3
- CVE-2026-95812ClipBucket v5 before 5.5.3-#182 contains a reflected cross-s…6.1
- CVE-2026-95813e621ng versions before 26.09.16 pass untrusted request param…6.1
- CVE-2026-95814Vaultwarden through 1.37.3 omits organization membership sta…8.1
- CVE-2026-95815OpenClaw iOS before 2026.8.11 logs complete agent deep-link …6.3
- CVE-2026-95818A stack-based buffer overflow in the dynamic loader (ld.so) …3.6
Are you affected by CVE-2026-95806?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST