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Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

CVE-2026-44671

Low
0/10

Summary

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. This issue affects versions from 2.71.11 through 2.71.19, 3.1.0 through 3.4.9 and 4.0.0 through 4.14.0.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

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

The software constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.

References

Advisory Timeline

  • Published