CVE-2026-55167

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Source
https://cve.org/CVERecord?id=CVE-2026-55167
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55167.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55167
Aliases
  • GHSA-xgjg-fchx-x3g3
Downstream
Published
2026-10-14T18:23:26Z
Modified
2026-10-15T10:47:35Z
Severity
  • 4.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
LDAP Account Manager: WebAuthn authentication challenge is kept in the PHP session
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-294"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55167.json"
}
References

Affected packages

Git / github.com/ldapaccountmanager/lam

Affected ranges

Type
GIT
Repo
https://github.com/ldapaccountmanager/lam
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b0724fc7d6a8af5e6be3a50cdef274d916627c01
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "9.6"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

8.*
8.5
8.6
8.6.RC1
8.7
8.7.RC1
8.8
8.8.RC1
8.9
8.9.RC1
9.*
9.0
9.0.RC1
9.1
9.1.RC1
9.2
9.2.RC1
9.3
9.3.RC1
9.4
9.4.RC1
9.5
9.5.1
9.5.2
9.5.RC1
9.6.RC1
Other
lam_5_4
lam_5_4_RC1
lam_5_5
lam_5_5_RC1
lam_5_6
lam_5_6_RC1
lam_5_7
lam_5_7_RC1
lam_6_0
lam_6_0_RC1
lam_6_0_RC2
lam_6_1
lam_6_1_RC1
lam_6_2
lam_6_2_RC1
lam_6_3
lam_6_3_RC1
lam_6_4
lam_6_4_RC1
lam_6_5
lam_6_5_RC1
lam_6_6
lam_6_6_RC1
lam_6_7
lam_6_7_RC1
lam_6_8
lam_6_8_RC1
lam_6_9
lam_6_9_RC1
lam_7_0
lam_7_0_RC1
lam_7_1
lam_7_1_RC1
lam_7_2
lam_7_2_RC1
lam_7_3
lam_7_4
lam_7_4_RC1
lam_7_5
lam_7_5_RC1
lam_7_6
lam_7_6_RC1
lam_7_7
lam_7_7_RC1
lam_7_8
lam_7_8_RC1
lam_7_9_RC1
lam_8_0
lam_8_0_1
lam_8_0_RC1
lam_8_1
lam_8_1_RC1
lam_8_2
lam_8_2_RC1
lam_8_3
lam_8_3_RC1
lam_8_4
lam_8_4_RC1
lam_8_5_RC1
untagged-0f11e4b04e249cac51c5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55167.json"