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.
Advisories

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Fixes

Solution

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Workaround

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History

Wed, 11 Nov 2026 19:00:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-11T18:41:09.011Z

Reserved: 2026-11-11T18:27:27.098Z

Link: CVE-2026-126777

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-11T19:17:38.497

Modified: 2026-11-11T19:17:38.627

Link: CVE-2026-126777

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses