{"answers":{"affected":"3 open source packages ship an affected version, including github.com/free5gc/smf. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44329 exists.","fix":"Upgrade github.com/free5gc/smf to 1.4.3 or later.","what":"CVE-2026-44329 is a critical missing authorization vulnerability in Free5gc Free5gc, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-44329 and fix it if it is affected.\n\nWhat it is: CVE-2026-44329 is a critical missing authorization vulnerability in Free5gc Free5gc, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44329 exists.\n\nAffected packages and fixed versions:\n- github.com/free5gc/smf (Go): affected all versions; fixed in 1.4.3\n- github.com/free5gc/smf (Go): affected all versions; fixed in 1.4.3\n- github.com/free5gc/smf (Go): affected all versions; fixed in 1.4.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-44329/ (Markdown: https://insights.sbomify.com/CVE-2026-44329/index.md)","id":"CVE-2026-44329","markdown":"https://insights.sbomify.com/CVE-2026-44329/index.md","name":"CVE-2026-44329","record":{"aliases":["GHSA-3258-qmv8-frp3","GO-2026-4995"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"5G core network","requires_auth":"none","summary":"Unauthenticated attackers can read, modify, and delete SMF topology data in free5GC due to missing authorization middleware on UPI management endpoints.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"free5gc","vendor":"free5gc"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"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 OAuth2/bearer-token authorization middleware. A network attacker who can reach SMF on the SBI can hit UPI endpoints with no Authorization header at all, and the requests reach the SMF business handlers. In the running Docker lab this was directly demonstrated for read (GET /upi/v1/upNodesLinks), write (POST /upi/v1/upNodesLinks with attacker-controlled UP-node and link payload), and delete (DELETE /upi/v1/upNodesLinks/{nodeID}) operations. This vulnerability is fixed in 4.2.2.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers","id":"CVE-2026-44329","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"free5gc:free5gc","products":["free5gc:free5gc"],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions","id":"CVE-2026-44330"},"packages":[{"ecosystem":"Go","fixed":["1.4.3"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/smf","purl":null,"source":"GHSA-3258-qmv8-frp3"},{"ecosystem":"Go","fixed":["1.4.3"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/smf","purl":"pkg:golang/github.com/free5gc/smf","source":"GHSA-3258-qmv8-frp3"},{"ecosystem":"Go","fixed":["1.4.3"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/smf","purl":"pkg:golang/github.com/free5gc/smf","source":"GO-2026-4995"}],"prev":{"headline":"free5GC's SMF UPI DELETE /upi/v1/upNodesLinks/{ref} panics on AN-node deletion via nil UPF dereference; unauthenticated, state-mutating","id":"CVE-2026-44328"},"products":["free5gc"],"published":"2026-05-27","related":[{"cvss_score":10,"headline":"free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler","id":"CVE-2026-44327","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":10,"headline":"free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions","id":"CVE-2026-44330","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-63679","kev_date_added":null,"published":"2025-11-12"},{"cvss_score":9.4,"headline":"free5GC's NEF 3gpp-pfd-management API is unauthenticated; forged bearer tokens can create, read, and delete PFD transactions","id":"CVE-2026-44315","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":9.4,"headline":"free5GC's NEF 3gpp-traffic-influence API is unauthenticated; missing or forged bearer tokens can create, read, patch, and delete subscriptions","id":"CVE-2026-44326","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":8.7,"headline":"free5gc UDR improper path validation allows unauthenticated access to Traffic Influence Subscriptions","id":"CVE-2026-40247","kev_date_added":null,"published":"2026-04-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-28","vendors":["free5gc"]},"summary":"Unauthenticated attackers can read, modify, and delete SMF topology data in free5GC due to missing authorization middleware on UPI management endpoints.","url":"https://insights.sbomify.com/CVE-2026-44329/"}