What is CVE-2026-44305?

CVE-2026-44305 is a medium-severity vulnerability in Netflix Lemur, classified under Improper Certificate Validation. CVSS score: 6.8/10. Published 2026-05-12.

How severe is CVE-2026-44305?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Netflix Lemur

CVE-2026-44305

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…

Vulnerability class: Improper Certificate Validation

EPSS: 0.000 (1.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Netflix Lemur — versions < 1.9.0

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-44305?: CVE-2026-44305 is a medium-severity vulnerability in Netflix Lemur, classified under Improper Certificate Validation. CVSS score: 6.8/10. Published 2026-05-12.
How severe is CVE-2026-44305?: Medium severity. CVSS v3 base score is 6.8 out of 10.