CVE-2026-44304 — Lemur: LDAP Filter Injection enables post-authentication privilege escalation
Lemur manages TLS certificate creation. Prior to 1.9.0, Lemur's LDAP authentication module (lemur/auth/ldap.py) constructs LDAP search filters using unsanitized user input via P…
Published: 2026-05-12 · CVSS: 8.1 · CVSS 3.1
Lemur manages TLS certificate creation. Prior to 1.9.0, Lemur's LDAP authentication module (lemur/auth/ldap.py) constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries and escalate their privileges to administrator. This vulnerability is fixed in 1.9.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7