CVE-2026-42083
- Source
- https://cve.org/CVERecord?id=CVE-2026-42083
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42083.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-42083
- Aliases
- Published
- 2026-05-27T15:56:11.394Z
- Modified
- 2026-07-08T08:13:13.384732647Z
- Severity
-
- 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
- Summary
- free5GC: PCF Npcf_SMPolicyControl missing authentication middleware allows unauthenticated access to SM policy handlers and disclosure of subscriber SUPI
- Details
-
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, PCF NpcfSMPolicyControl missing authentication middleware allows unauthenticated access to SM policy handlers and disclosure of subscriber SUPI. In NewServer(), the smPolicyGroup route group is created and routes are applied without attaching the router authorization middleware. In contrast, other PCF service groups such as NpcfPolicyAuthorization do attach RouterAuthorizationCheck before route registration. Because the middleware is missing, requests to the /npcf-smpolicycontrol/v1/sm-policies, /npcf-smpolicycontrol/v1/sm-policies/{smPolicyId}, /npcf-smpolicycontrol/v1/sm-policies/{smPolicyId}/update, and /npcf-smpolicycontrol/v1/sm-policies/{smPolicyId}/delete endpoints can reach business logic even when no valid OAuth token is provided. This vulnerability is fixed in 4.2.2.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42083.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-862" ] }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42083.json
- https://github.com/free5gc/free5gc/security/advisories/GHSA-6rgm-gr97-x3j5
- https://nvd.nist.gov/vuln/detail/CVE-2026-42083
- https://github.com/free5gc/free5gc/issues/844
- https://github.com/free5gc/pcf/commit/8c4d457cdf58bb239ee30e88c56b370b22073964
- https://github.com/free5gc/pcf/pull/63
Affected packages
Git / github.com/free5gc/free5gc
Affected ranges
- Type
- GIT
- Repo
- https://github.com/free5gc/free5gc
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "source": [ "AFFECTED_FIELD", "CPE_RANGE" ], "cpe": "cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "4.2.2" } ] }