Quick answers
- Is CVE-2026-126777 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-126777 being exploited in the wild.
- How severe is CVE-2026-126777?
- High severity, with a CVSS score of 7.4, published 11 November 2026.
- Which products and versions are affected?
- Traccar 3.15 before 6.17.0.
- Is there a fix for CVE-2026-126777?
- Yes: fixed in 6.17.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-126777 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-126777?
- Check whether you run Traccar at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 6.17.0
Technical details
The LdapProvider.login() method fails to reject empty passwords before performing LDAP bind operations. When a blank password is provided, the LDAP client performs an unauthenticated bind, which many LDAP servers permit by default. This allows any user with a known username to bypass authentication by sending POST requests to /api/session or using HTTP Basic authentication with an empty password, gaining full session access including admin privileges.
Affected products
- Traccar Traccar 3.15 before 6.17.0
Timeline
- 2026-11-11: disclosed