Vulnerability Description
ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zitadel | Zitadel | >= 2.71.11, < 3.4.10 |
Related Weaknesses (CWE)
References
- https://github.com/zitadel/zitadel/releases/tag/v3.4.10ProductRelease Notes
- https://github.com/zitadel/zitadel/releases/tag/v4.15.0ProductRelease Notes
- https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6pxMitigationPatchVendor Advisory
FAQ
What is CVE-2026-44671?
CVE-2026-44671 is a vulnerability with a CVSS score of 7.5 (HIGH). ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to prop...
How severe is CVE-2026-44671?
CVE-2026-44671 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44671?
Check the references section above for vendor advisories and patch information. Affected products include: Zitadel Zitadel.