What’s Vulnerable › Vulnerabilities

CVE-2026-44305: Lemur: LDAP TLS certificate verification globally disabled enables credential interception

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-12 · updated 2026-10-26
• Weakness: CWE-295

Description

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 products

• Netflix lemur: before 1.9.0

References

• https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5
• https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5

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