{"id":"CVE-2026-44316","revision":"ef4029f5ba004b8fba99f837a4556e87","records":[{"revision":"ef4029f5ba004b8fba99f837a4556e87","observedAt":"2026-10-25T10:17:21.823+00:00","statement":{"source":"nvd","id":"CVE-2026-44316","aliases":[],"title":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-smpolicycontrol/v1/sm-policies handler (HandleCreateSmPolicyRequest) panics with a nil-pointer dereference when a downstream OpenAPI c…","description":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-smpolicycontrol/v1/sm-policies handler (HandleCreateSmPolicyRequest) panics with a nil-pointer dereference when a downstream OpenAPI consumer call (UDR lookup) returns 404 Not Found and the consumer wrapper returns err != nil together with a nil response struct. The handler logs the OpenAPI error and continues executing instead of returning, then dereferences the nil response struct on a subsequent line and panics. Gin recovery converts the panic into HTTP 500, so a single attacker-shaped POST returns 500 instead of a clean 4xx whenever the downstream lookup fails. The PCF process keeps running. The trigger is a single POST containing input that causes the downstream UDR lookup to fail (e.g. an unknown DNN). In 4.2.1 this endpoint is also reachable WITHOUT an Authorization header because the PCF Npcf_SMPolicyControl route group is mounted without inbound auth middleware. This vulnerability is fixed in 4.2.2.","state":0,"publishedAt":"2026-05-27T17:16:36.57+00:00","modifiedAt":"2026-10-14T20:10:00.19+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/free5gc/free5gc/issues/803","https://github.com/free5gc/free5gc/security/advisories/GHSA-wr8j-6chw-gm6p","https://github.com/free5gc/pcf/commit/df535f5524314620715e842baf9723efbeb481a7","https://github.com/free5gc/pcf/pull/62"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44316","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-476","CWE-754"],"productCriteria":["cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-05-27T17:16:36.570","lastModified":"2026-10-14T20:10:00.190"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-44316","identifiers":["CVE-2026-44316"]},"retained":false,"historicalAffected":[]}],"coverage":[]}