Dashboard / CVE-2026-126777

CVE-2026-126777

CRITICAL
INFO Priority: 0.04 BB Relevance: 78/100
Published: 2026-11-11 Modified: 2026-11-13 First seen: 2026-11-11 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: Present
VC: High
VI: High
VA: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
Traccar Traccar 3.15 < 6.17.0
Traccar Traccar 3.15 < 6.17.0

References & Advisories (5)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.46%
Raw Score 0.004640
Percentile 40.8%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00464
2026-11-13
0.00464
2026-11-12
0.00464

Intelligence Sources

mitre ref →
nvd ref →

External Links