WebAuthn Vulnerability in LDAP Account Manager Prior to Version 9.6
CVE-2026-55167

4.2MEDIUM

Key Information:

Vendor

Ldapaccountmanager

Status
Lam
Vendor
CVE Published:
14 October 2026

What is CVE-2026-55167?

LDAP Account Manager (LAM), a web frontend for managing LDAP directory entries, has a vulnerability that impacts installations using WebAuthn two-factor authentication prior to version 9.6. This issue allows users who have successfully authenticated via password to retain the signed WebAuthn ceremony state in the same PHP session. Thus, an attacker may exploit this behavior to reuse the authentication state improperly, presenting potential security risks. The vulnerability has been addressed in version 9.6, which eliminates this occurrence.

Affected Version(s)

lam < 9.6

References

https://github.com/LDAPAccountManager/lam/security/adviso...
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https://github.com/LDAPAccountManager/lam/commit/a56dcaab...
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https://github.com/LDAPAccountManager/lam/releases/tag/9.6
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CVSS V3.1

Score:
4.2
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.