Traccar 3.15 before 6.17.0 contains an authentication bypass vulnerability in LdapProvider.login() that fails to
Source GCVE Database
Not known to be exploited · CVSS 9.1 Critical : upgrade to 6.17.0 as a priority.
Data as of 11 Nov 2026, 22:33 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 9.1 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 7.4 |
- Patch
- Available – fixed in 6.17.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade Traccar to 6.17.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| TraccarTraccar | Affected
| Fixed in
|
GitHubTraccarpkg:github/TraccarOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available in Traccar version 6.17.0 and later. Users should upgrade to version 6.17.0 or newer to remediate this vulnerability. Until upgraded, ensure that LDAP directories do not permit unauthenticated binds to reduce exposure.
Description
Traccar versions from 3.15 up to but not including 6.17.0 contain an authentication bypass vulnerability in the LdapProvider.login() function. This flaw allows unauthenticated attackers who know a valid username to log in with an empty password if the LDAP directory permits unauthenticated binds. This can lead to unauthorized access to any account, including administrator accounts.
References
- nvd.nist.gov/vuln/detail/CVE-2026-126777 (opens in a new tab)
- github.com/traccar/traccar/commit/552c31f2097dbed9edef7cfe174c50b16febdc21 (opens in a new tab)
- github.com/traccar/traccar/blob/v3.15/src/org/traccar/database/LdapProvider.java (opens in a new tab)
- github.com/traccar/traccar/blob/v6.16.0/src/main/java/org/traccar/database/LdapProvider.java (opens in a new tab)
- github.com/traccar/traccar/releases/tag/v6.17.0 (opens in a new tab)
- vulncheck.com/advisories/traccar-3.15-before-6.17.0-authentication-bypass-via-empty-ldap-password (opens in a new tab)