173 lines
7.2 KiB
JSON
173 lines
7.2 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-44328",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-05T19:00:06.023Z",
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"datePublished": "2026-05-27T15:39:44.153Z",
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"dateUpdated": "2026-05-27T17:42:00.534Z"
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},
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"containers": {
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"cna": {
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"title": "free5GC: SMF UPI DELETE /upi/v1/upNodesLinks/{ref} panics on AN-node deletion via nil UPF dereference; unauthenticated, state-mutating",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-306",
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"lang": "en",
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"description": "CWE-306: Missing Authentication for Critical Function",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-476",
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"lang": "en",
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"description": "CWE-476: NULL Pointer Dereference",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-862",
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"lang": "en",
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"description": "CWE-862: Missing Authorization",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-p9mg-74mg-cwwr",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-p9mg-74mg-cwwr"
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},
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{
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"name": "https://github.com/free5gc/free5gc/issues/905",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/free5gc/free5gc/issues/905"
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},
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{
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"name": "https://github.com/free5gc/smf/pull/199",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/free5gc/smf/pull/199"
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},
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{
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"name": "https://github.com/free5gc/smf/commit/b57bc48081c3d3a2f333d02eb78e4fd31a120deb",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/free5gc/smf/commit/b57bc48081c3d3a2f333d02eb78e4fd31a120deb"
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}
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],
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"affected": [
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{
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"vendor": "free5gc",
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"product": "free5gc",
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"versions": [
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{
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"version": "< 4.2.2",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-27T15:39:44.153Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "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."
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}
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],
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"source": {
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"advisory": "GHSA-p9mg-74mg-cwwr",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-p9mg-74mg-cwwr",
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"tags": [
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"exploit"
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]
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},
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{
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"url": "https://github.com/free5gc/free5gc/issues/905",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-27T17:41:28.346248Z",
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"id": "CVE-2026-44328",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-05-27T17:42:00.534Z"
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}
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}
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]
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}
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} |