CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2026-44671
High (7.5) in zitadel zitadel. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in github.com/zitadel/zitadel 3.4.10, 4.15.0.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
- CWE
- CWE-90
- Published
- Modified
- Record from
- the NVD, synced
Affected
- zitadel:zitadel
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rxvx-hhpj-q6px | Go | github.com/zitadel/zitadel | >=4.0.0 <4.15.0 | 4.15.0 |
| GHSA-rxvx-hhpj-q6px | Go | github.com/zitadel/zitadel | >=2.71.11 <=2.71.19 | no fix published |
| GHSA-rxvx-hhpj-q6px | Go | github.com/zitadel/zitadel | >=3.1.0 <3.4.10 | 3.4.10 |
| GO-2026-5648 | Go | github.com/zitadel/zitadel | all versions | no fix published |
| GO-2026-5648 | Go | github.com/zitadel/zitadel | all versions | no fix published |
| GO-2026-5648 | Go | github.com/zitadel/zitadel | all versions | no fix published |