CVE-2026-55167: medium-severity vulnerability in LDAPAccountManager lam
LDAP Account Manager: WebAuthn authentication challenge is kept in the PHP session
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.2epss 0.2%
LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. Prior to 9.6, installations with WebAuthn two-factor authentication leave the challenge in the same PHP session after the authentication response is processed. A user who has already completed valid password authentication can therefore retain the same signed WebAuthn ceremony state instead of consuming it once. The practical risk is limited by the requirement for a valid password, the same PHP session, and a valid authenticator signature. This issue is fixed in version 9.6.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
LDAPAccountManager · lamRelated CVEs — LDAPAccountManager lam
In the same product, most dangerous first.
CVE-2024-23333HIGHLAM vulnerable to Authenticated Remote Code ExecutionEPSS 17.8%CVE-2022-31084CRITICALUnauthenticated Remote Code Execution in ldap-account-managerEPSS 2.5%CVE-2022-31086MEDIUMIncorrect Regular Expressions in ldap-account-managerEPSS 2.3%CVE-2022-31088MEDIUMUnauthenticated LDAP Injection in ldap-account-managerEPSS 1.3%CVE-2022-24851HIGHStored XSS and path traversal in LDAPAccountManager/lamEPSS 1.1%CVE-2024-52792MEDIUMArbitrary config values override in lamEPSS 0.7%