{"id":"EUVD-2026-32570","revision":"8c7b8f87053b44f385553e6aae250698","records":[{"revision":"8c7b8f87053b44f385553e6aae250698","observedAt":"2026-10-30T07:52:07.431+00:00","statement":{"source":"euvd","id":"EUVD-2026-32570","aliases":["CVE-2026-44328","GHSA-p9mg-74mg-cwwr"],"title":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/{upNodeRef} handler unco…","description":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/{upNodeRef} handler unconditionally dereferences upNode.UPF after the type-guarded async release, even though AN-typed nodes are constructed without a UPF object. As a result, a single unauthenticated DELETE /upi/v1/upNodesLinks/gNB1 request crashes the handler with a nil-pointer panic AND mutates the in-memory user-plane topology before panicking (the UpNodeDelete(upNodeRef) line runs first). This is an unauthenticated, state-mutating panic-DoS sink that an off-path network attacker can trigger by name against any AN entry. This vulnerability is fixed in 4.2.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","score":8.2,"severity":null}],"references":["https://github.com/free5gc/free5gc/security/advisories/GHSA-p9mg-74mg-cwwr","https://github.com/free5gc/free5gc/issues/905","https://github.com/free5gc/smf/pull/199","https://github.com/free5gc/smf/commit/b57bc48081c3d3a2f333d02eb78e4fd31a120deb"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-32570","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 27, 2026, 3:39:44 PM","dateUpdated":"May 27, 2026, 5:42:00 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-32570","identifiers":["EUVD-2026-32570","CVE-2026-44328","GHSA-p9mg-74mg-cwwr"]},"retained":false,"historicalAffected":[]}],"coverage":[]}