{"answers":{"affected":"3 open source packages ship an affected version, including github.com/free5gc/nrf. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66719 exists.","fix":"Upgrade github.com/free5gc/nrf to 1.4.1 or later.","what":"CVE-2025-66719 is a critical authentication bypass vulnerability in n/a, published on 23 Jan 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-2025-66719 and fix it if it is affected.\n\nWhat it is: CVE-2025-66719 is a critical authentication bypass vulnerability in n/a, published on 23 Jan 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-2025-66719 exists.\n\nAffected packages and fixed versions:\n- github.com/free5gc/nrf (Go): affected all versions; fixed in 1.4.1\n- github.com/free5gc/nrf (Go): affected all versions; fixed in 1.4.1\n- github.com/free5gc/nrf (Go): affected all versions; fixed in 1.4.1\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-2025-66719/ (Markdown: https://insights.sbomify.com/CVE-2025-66719/index.md)","id":"CVE-2025-66719","markdown":"https://insights.sbomify.com/CVE-2025-66719/index.md","name":"CVE-2025-66719","record":{"aliases":["GHSA-q7c8-gfjh-8v4p","GO-2026-5570"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"5G Core Network Function","requires_auth":"none","summary":"Attackers can bypass scope validation in Free5gc NRF to obtain access tokens with arbitrary scopes, leading to privilege escalation.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nrf","vendor":"free5gc"}],"cvss":{"score":9.1,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"An issue was discovered in Free5gc NRF 1.4.0. In the access-token generation logic of free5GC, the AccessTokenScopeCheck() function in file internal/sbi/processor/access_token.go bypasses all scope validation when the attacker uses a crafted targetNF value. This allows attackers to obtain an access token with any arbitrary scope.","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 NRF is vulnerable to scope validation bypass via maliciously crafted targetNF value","id":"CVE-2025-66719","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2025"},"n_packages":3,"n_references":2,"next":{"headline":"Null dereference in n/a","id":"CVE-2025-66720"},"packages":[{"ecosystem":"Go","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/nrf","purl":null,"source":"GHSA-q7c8-gfjh-8v4p"},{"ecosystem":"Go","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/nrf","purl":"pkg:golang/github.com/free5gc/nrf","source":"GHSA-q7c8-gfjh-8v4p"},{"ecosystem":"Go","fixed":["1.4.1"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/nrf","purl":"pkg:golang/github.com/free5gc/nrf","source":"GO-2026-5570"}],"prev":{"headline":"Code injection in n/a","id":"CVE-2025-66715"},"products":["n/a"],"published":"2026-01-23","related":[],"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":"partial"},"state":"PUBLISHED","updated":"2026-01-23","vendors":["n/a"]},"summary":"Attackers can bypass scope validation in Free5gc NRF to obtain access tokens with arbitrary scopes, leading to privilege escalation.","url":"https://insights.sbomify.com/CVE-2025-66719/"}