CVE-2026-126777

Traccar 3.15 before 6.17.0 Authentication Bypass via Empty LDAP Password

Published Nov 11, 2026 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Traccar 3.15 before 6.17.0 contains an authentication bypass vulnerability in LdapProvider.login() that fails to reject empty passwords, causing LDAP binds to be performed as unauthenticated binds when LDAP authentication is enabled. Unauthenticated attackers who know a valid username can log in via POST /api/session or HTTP Basic authentication with an empty password against directories that permit unauthenticated binds, obtaining sessions for any account including administrators.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description Traccar 3.15 before 6.17.0 contains an authentication bypass vulnerability in LdapProvider.login() that fails to reject empty passwords, causing LDAP binds to be performed as unauthenticated binds when LDAP authentication is enabled. Unauthenticated attackers who know a valid username can log in via POST /api/session or HTTP Basic authentication with an empty password against directories that permit unauthenticated binds, obtaining sessions for any account including administrators.
Title Traccar 3.15 before 6.17.0 Authentication Bypass via Empty LDAP Password
First Time appeared Traccar
Traccar traccar
Weaknesses CWE-287
CPEs cpe:2.3:a:traccar:traccar:*:*:*:*:*:*:*:*
Vendors & Products Traccar
Traccar traccar
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 13, 2026, 12:01 AM
Reserved
Nov 11, 2026, 6:27 PM
Status
Deferred
Published
Nov 11, 2026, 7:17 PM
Modified
Nov 13, 2026, 2:18 AM