CVE-2026-108738
Traccar 5.7 through 6.16.0 Login CSRF via OpenID Connect Callback
CVSS Score
4.2
EPSS Score
0.0%
EPSS Percentile
0th
Traccar 5.7 through 6.16.0 contains a cross-site request forgery vulnerability that allows attackers to log victims into attacker-controlled accounts because the OpenID Connect callback never validates the OAuth state parameter. Attackers can induce a victim's browser to load /api/session/openid/callback with their own authorization code, causing data the victim enters, such as registered devices, to land in the attacker's account.
| CWE | CWE-352 |
| Vendor | traccar |
| Product | traccar |
| Published | Oct 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Traccar / Traccar
5.7 ≤ 6.16.0
References
hackmd.io: https://hackmd.io/@haind/traccar-oidc-client-missing-state-login-csrf github.com: https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/database/OpenIdProvider.java#L110-L198 github.com: https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/resource/SessionResource.java#L175-L193 github.com: https://github.com/traccar/traccar vulncheck.com: https://www.vulncheck.com/advisories/traccar-5.7-through-6.16.0-login-csrf-via-openid-connect-callback
Credits
HaiND from the Post and Telecommunication Institute of Technology