CVE-2026-44305
MEDIUMLemur: LDAP TLS certificate verification globally disabled enables credential interception
Title source: cnaDescription
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.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5
Scores
CVSS v3
6.8
EPSS
0.0001
EPSS Percentile
1.0%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-295
Status
published
Products (2)
Netflix/lemur
< 1.9.0
pypi/lemur
0 - 1.9.0PyPI
Published
May 12, 2026
Tracked Since
May 13, 2026