CVE-2026-108738

Description

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.

References

https://www.vulncheck.com/advisories/traccar-5.7-through-6.16.0-login-csrf-via-openid-connect-callback

https://hackmd.io/@haind/traccar-oidc-client-missing-state-login-csrf

https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/database/OpenIdProvider.java#L110-L198

https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/resource/SessionResource.java#L175-L193

https://github.com/traccar/traccar

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-96904

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4