High severity8.1NVD Advisory· Published May 12, 2026· Updated May 14, 2026

CVE-2026-44304

Description

Lemur manages TLS certificate creation. Prior to 1.9.0, Lemur's LDAP authentication module (lemur/auth/ldap.py) constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries and escalate their privileges to administrator. This vulnerability is fixed in 1.9.0.

Affected products

Lemur/Lemurllm-create
Range: <|VERSION|>

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/advisories/GHSA-3r34-vq8m-39ghghsaADVISORY
github.com/Netflix/lemur/releases/tag/v1.9.0ghsa
github.com/Netflix/lemur/security/advisories/GHSA-3r34-vq8m-39ghnvd
nvd.nist.gov/vuln/detail/CVE-2026-44304ghsa

News mentions

No linked articles in our index yet.

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