Traccar 5.7 through 6.16.0 Login CSRF via OpenID Connect Callback

{
  "id": "4638adc2faaa6ec99ec48b8fffd0ba5d642fd5ce234e8b1f78d78415273407e6",
  "url": "https://osv.dev/vulnerability/CVE-2026-108738",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Traccar 5.7 through 6.16.0 Login CSRF via OpenID Connect Callback",
    "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. 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.",
    "evidence": "osv:CVE-2026-108738",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-108738",
      "aliases": [
        "CVE-2026-108738"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/traccar/traccar",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f982ed08a3d21e8eb6e9bbf4c25698ecbaad5b37"
                },
                {
                  "last_affected": "cfab560c79ee9c9eaa41c79c6df351e820d6284b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "5.7"
                      },
                      {
                        "last_affected": "6.16.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "5.7"
                      },
                      {
                        "last_affected": "6.16.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.16.0",
            "v6.15.3",
            "v6.15.2",
            "v6.15.1",
            "v6.15.0",
            "v6.14.5",
            "v6.14.4",
            "v6.14.3",
            "v6.14.2",
            "v6.14.1",
            "v6.14.0",
            "v6.13.3",
            "v6.13.2",
            "v6.13.1",
            "v6.13.0",
            "v6.12.2",
            "v6.12.1",
            "v6.12.0",
            "v6.11.1",
            "v6.11.0",
            "v6.10.0",
            "v6.9.1",
            "v6.9.0",
            "v6.8.1",
            "v6.8.0",
            "v6.7.3",
            "v6.7.2",
            "v6.7.1",
            "v6.7.0",
            "v6.6",
            "v6.5",
            "v6.4",
            "v6.3",
            "v6.2",
            "v6.1",
            "v6.0",
            "v5.12",
            "v5.11",
            "v5.10",
            "v5.9",
            "v5.8",
            "v5.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108738.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.597672185Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108738.json",
        "https://hackmd.io/@haind/traccar-oidc-client-missing-state-login-csrf",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-108738",
        "https://www.vulncheck.com/advisories/traccar-5.7-through-6.16.0-login-csrf-via-openid-connect-callback",
        "https://github.com/traccar/traccar",
        "https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/api/resource/SessionResource.java#L175-L193",
        "https://github.com/traccar/traccar/blob/cfab560c79ee9c9eaa41c79c6df351e820d6284b/src/main/java/org/traccar/database/OpenIdProvider.java#L110-L198"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-352"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108738.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-108738",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519096,
  "published_at": "2026-10-11T12:19:43.602+00:00"
}