CVE-2026-44304
Lemur: LDAP Filter Injection enables post-authentication privilege escalation
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-90 |
| Vendor | netflix |
| Product | lemur |
| Published | May 12, 2026 |
Stay Ahead of the Next One
Get instant alerts for netflix lemur
Be the first to know when new high vulnerabilities affecting netflix lemur are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Netflix / lemur
< 1.9.0