CVE-2026-95806 - MISP: PHP phar stream wrapper enables deserialization and code execution via caller-influenced filesystem paths

CVE-2026-95806 - MISP: PHP phar stream wrapper enables deserialization and code execution via caller-influenced filesystem paths

https://cvefeed.io/rssfeed/latest.atom / Tue, 09/22/2026 - 19:33
CVE ID :CVE-2026-95806
Published : Sept. 22, 2026, 4:18 p.m. | 52 minutes ago
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.
Severity: 7.7 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more...

About

Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.