CVE-2026-44305— Lemur: LDAP TLS certificate verification globally disabled enables credential interception
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-44305
Vulnerability Information
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Vulnerability Title
Lemur: LDAP TLS certificate verification globally disabled enables credential interception
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
lemur 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
lemur是Netflix, Inc.开源的一个TLS证书管理工具。 Lemur 1.9.0之前版本存在信任管理问题漏洞，该漏洞源于启用LDAP TLS时无条件禁用TLS证书验证，可能导致中间人攻击拦截认证凭据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-44305
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- https://github.com/Netflix/lemur/security/advisories/GHSA-vr7c-r5gj-j3w5x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-44305
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V. Comments for CVE-2026-44305
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