# CVE-2026-44304

## Summary

- **CVE ID:** CVE-2026-44304
- **Severity:** HIGH
- **CVSS Score:** 8.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-90
- **Published:** May 12, 2026
- **Last Modified:** May 14, 2026

## 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

- Netflix — lemur (< 1.9.0)

## References

- [CNA](https://github.com/Netflix/lemur/security/advisories/GHSA-3r34-vq8m-39gh)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.18%
- **EPSS Percentile:** 7.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._