{"id":"CVE-2026-40343","revision":"7ecf24fa73d44895b27eced0f7b6793f","records":[{"revision":"7ecf24fa73d44895b27eced0f7b6793f","observedAt":"2026-10-27T10:09:56.341+00:00","statement":{"source":"nvd","id":"CVE-2026-40343","aliases":[],"title":"free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.2, a fail-open request handling flaw in the UDR service causes the `/nudr…","description":"free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.2, a fail-open request handling flaw in the UDR service causes the `/nudr-dr/v2/policy-data/subs-to-notify` POST handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended creation of Policy Data notification subscriptions with invalid, empty, or partially processed input, depending on downstream processor behavior. As of time of publication, a patched version is not available.","state":0,"publishedAt":"2026-04-22T00:16:27.67+00:00","modifiedAt":"2026-10-26T22:10:00.163+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","score":5.8,"severity":"MEDIUM"}],"references":["https://github.com/free5gc/free5gc/security/advisories/GHSA-jwch-w7wh-gqjm"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40343","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-754"],"productCriteria":["cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*","cpe:2.3:a:free5gc:udr:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-04-22T00:16:27.670","lastModified":"2026-10-26T22:10:00.163"},"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-2026-40343","identifiers":["CVE-2026-40343"]},"retained":false,"historicalAffected":[]}],"coverage":[]}