LAM has incorrect regular expression in PDF export component that allows user to upload files of any type
Summary
LAM has incorrect regular expression in PDF export component that allows user to upload files of any type
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-27895 ldap-account-manager
- Ubuntu UBUNTU-CVE-2026-27895 ldap-account-manager
References
- advisory github.com
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web github.com