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CVE-2026-44304: Lemur: LDAP Filter Injection enables post-authentication privilege escalation

May 6, 2026 (updated May 13, 2026)

Lemur: LDAP Filter Injection enables post-authentication privilege escalation

References

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

Code Behaviors & Features

Detect and mitigate CVE-2026-44304 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 1.9.0

Fixed versions

  • 1.9.0

Solution

Upgrade to version 1.9.0 or above.

Impact 8.1 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Source file

pypi/lemur/CVE-2026-44304.yml

Spotted a mistake? Edit the file on GitLab.

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