Critical

Weak Password Requirements in UnboundID LDAP SDK

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 11:20

UnboundID LDAP SDK version from commit 801111d8b5c732266a5dbd4b3bb0b6c7b94d7afb up to commit 8471904a02438c03965d21367890276bc25fa5a6, where the issue was reported and fixed contains an Incorrect Access Control vulnerability in process function in SimpleBindRequest class doesn't check for empty password when running in synchronous mode. The issue can result in ability to impersonate any valid user. This attack appear to be exploitable via Providing valid username and empty password against servers that do not do additional validation as per https://tools.ietf.org/html/rfc4513#section-5.1.1. This vulnerability appears to have been fixed in commit 8471904a02438c03965d21367890276bc25fa5a6.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) com.unboundid:unboundid-ldapsdk >= 1.1.0, < 4.0.5 4.0.5

References

CVSS score 9.8/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-521
Platform
Java / Kotlin (Maven)
Package
com.unboundid:unboundid-ldapsdk
Disclosed
13.05.2022
Updated
11.10.2026 11:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-qwq9-8rpf-8mp7 - CC BY 4.0

Vulnerability history: com.unboundid:unboundid-ldapsdk

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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