medium6.8
CVE-2026-44305
Lemur: LDAP Authentication Globally Disables TLS Certificate Verification When LDAP_USE_TLS Is Enabled
Impact
Lemur manages TLS certificate creation. Prior to 1.9.0, when LDAP TLS is enabled (LDAP_USE_TLS = True), Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all authentication credentials. This vulnerability is fixed in 1.9.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | lemur | < 1.9.0 | 1.9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-vr7c-r5gj-j3w5
- https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5
- https://github.com/Netflix/lemur/releases/tag/v1.9.0
- https://www.python-ldap.org/en/python-ldap-3.4.0/reference/ldap.html#tls-options
- https://nvd.nist.gov/vuln/detail/CVE-2026-44305