{"id":"CVE-2026-108738","title":"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","summary":"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. Attacker…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-352"],"published":"2026-10-11","updated":"2026-10-11","sourceUpdated":"2026-10-11T13:17:18.337","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-108738","references":[{"url":"https://github.com/traccar/traccar","label":"disclosure@vulncheck.com"},{"url":"https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/resource/SessionResource.java#L175-L193","label":"disclosure@vulncheck.com"},{"url":"https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/database/OpenIdProvider.java#L110-L198","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind/traccar-oidc-client-missing-state-login-csrf","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/traccar-5.7-through-6.16.0-login-csrf-via-openid-connect-callback","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-11T13:51:17.034Z","slug":"CVE-2026-108738","body":"## Overview\n\nTraccar 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}