Traccar
CVE-2026-25649
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticated user initiates OAuth flow
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DeliveryCraft malicious redirect_uri parameter
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ExploitOIDC endpoint redirects to attacker URL
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ExecutionAuthorization code sent to attacker
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ImpactAttacker exchanges code for victim account access
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Traccar version 6.11.1 or earlier with OAuth 2.0/OIDC integration enabled. Attacker must be authenticated user. Victim must click malicious link initiating authorization flow. OIDC endpoints lack redirect_uri whitelist validation. |
| Impact | CVSS 7.3 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required. Exploitation requires authentication. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker (requires authentication) could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Traccar GPS tracking system through version 6.11.1 allows authenticated users to hijack OAuth 2.0 authorization codes through unvalidated redirect URIs in OIDC endpoints, enabling account takeover on integrated applications. The vulnerability stems from missing whitelist validation on the redirect_uri parameter, permitting attackers to exfiltrate authorization codes to attacker-controlled servers. Public exploit code exists for this HIGH severity flaw, and no patch is currently available.
Earlier versions of this analysis (1)
Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain an issue in which authenticated users can steal OAuth 2.0 authorization codes by exploiting an open redirect vulnerability in two OIDC-related endpoints. [CVSS 7.3 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-352 (Cross-Site Request Forgery (CSRF)). Affects the two OIDC-related component of Traccar. Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain an issue in which authenticated users can steal OAuth 2.0 authorization codes by exploiting an open redirect vulnerability in two OIDC-related endpoints. The redirect_uri parameter is not validated against a whitelist, allowing attackers to redirect authorization codes to attacker-controlled URLs, enabling account takeover on any OAuth-integrated application. As of time of publication, it is unclear whet
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain an issue in which authenticated users can steal OAuth 2.0 authorization codes by exploiting an open redirect vulnerability in two OIDC-related endpoints. The redirect_uri parameter is not validated against a whitelist, allowing attackers to redirect authorization codes to attacker-controlled URLs, enabling account takeover on any OAuth-integrated application. As of time of publication, it is unclear whether a fix is available.
Executive ViewAI
Traccar GPS tracking systems up to version 6.11.1 are vulnerable to OAuth credential theft through open redirect attacks, allowing authenticated users to compromise accounts of other system users. This vulnerability poses a direct risk to organizations relying on Traccar for fleet management, field operations, or location tracking, as attackers could gain unauthorized access to sensitive location data and system controls.
Disable OIDC/OAuth 2.0 authentication if not essential to operations and use alternative authentication methods instead. Implement Web Application Firewall (WAF) rules to detect and block open redirect attempts targeting authorization endpoints. Restrict network access to OIDC endpoints via IP whitelisting or network segmentation. Monitor and log all authentication attempts and redirect parameters. Enforce multi-factor authentication for all Traccar user accounts to reduce impact of credential compromise. Conduct regular access reviews and revoke unnecessary OAuth tokens.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Affected Products (CPE)GitHub Advisory
Traccar is an open source GPS tracking system. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploi
Traccar Traccar Server version 4.0 and earlier contains a CWE-94: Improper Control of Generation of Code ('Code Injectio
Traccar versions 6.11.1 and later allow authenticated users to inject malicious JavaScript into other users' browsers by
Versions of the Traccar open-source GPS tracking system up to and including 6.11.1 contain a Cross-Site WebSocket Hijack
Traccar GPS tracking system through version 6.11.1 allows authenticated users to conduct arbitrary file writes by settin
In Traccar Server version 4.2, protocol/SpotProtocolDecoder.java might allow XXE attacks. Rated critical severity (CVSS
Use of Default Credentials vulnerability in Tananaev Solutions Traccar Server on Administrator Panel modules allows Auth
Silent configuration hijack in Traccar Client GPS tracking app (versions 9.7.19 and below) allows remote attackers to re
Password reset tokens in Traccar through 6.16.0 are not bound to their intended purpose, allowing an attacker who posses
Authenticated Traccar accounts that hold both group-management and report-request permissions can drive the server into
Traccar versions 6.11.1 through 6.13.0 fail to escape user-controlled device and computed attributes in CSV export funct
Traccar GPS Tracking System before version 4.9 has a LDAP injection vulnerability. Rated medium severity (CVSS 6.5), thi
Exploit-DB