CVE-2026-27895: LAM has incorrect regular expression in PDF export component that allows user to upload files of any type
LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. Prior to version 9.5, the PDF export component does not correctly validate uploaded file extensions. This way any file type (including .php files) can be uploaded. With GHSA-w7xq-vjr3-p9cf, an attacker can achieve remote code execution as the web server user. Version 9.5 fixes the issue. Although upgrading is recommended, a workaround would be to make /var/lib/ldap-account-manager/config read-only for the web-server user.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2026-27895?
CVE-2026-27895 has a medium severity due to the improper handling of file uploads in the PDF export component.
How do I fix CVE-2026-27895?
To mitigate CVE-2026-27895, upgrade to LDAP Account Manager version 9.5 or later.
What types of files can be uploaded due to CVE-2026-27895?
CVE-2026-27895 allows user to upload files of any type due to an incorrect regular expression.
Which versions of LDAP Account Manager are affected by CVE-2026-27895?
CVE-2026-27895 affects LDAP Account Manager versions prior to 9.5.
What component is vulnerable in CVE-2026-27895?
CVE-2026-27895 involves a vulnerability in the PDF export component of the LDAP Account Manager.