{"answers":{"affected":"3 open source packages ship an affected version, including github.com/free5gc/nrf. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33062 in the wild and no public exploit code.","fix":"Upgrade github.com/free5gc/nrf to 1.4.2 or later.","what":"CVE-2026-33062 is a high-severity denial of service vulnerability in Free5gc Free5gc, published on 20 Mar 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-2026-33062 and fix it if it is affected.\n\nWhat it is: CVE-2026-33062 is a high-severity denial of service vulnerability in Free5gc Free5gc, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-33062 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/free5gc/nrf (Go): affected all versions; fixed in 1.4.2\n- github.com/free5gc/nrf (Go): affected all versions; fixed in 1.4.2\n- github.com/free5gc/nrf (Go): affected all versions; fixed in 1.4.2\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-2026-33062/ (Markdown: https://insights.sbomify.com/CVE-2026-33062/index.md)","id":"CVE-2026-33062","markdown":"https://insights.sbomify.com/CVE-2026-33062/index.md","name":"CVE-2026-33062","record":{"aliases":["GHSA-7c47-xr7q-p6hg","GO-2026-4756"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"5G core network","requires_auth":"none","summary":"Remote attackers can crash the free5GC NRF discovery service by sending malformed HTTP requests, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"free5gc","vendor":"free5gc"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"free5GC is an open source 5G core network. free5GC NRF prior to version 1.4.2 has an Improper Input Validation vulnerability leading to Denial of Service. All deployments of free5GC using the NRF discovery service are affected. The `EncodeGroupId` function attempts to access array indices [0], [1], [2] without validating the length of the split data. When the parameter contains insufficient separator characters, the code panics with \"index out of range\". A remote attacker can cause the NRF service to panic and crash by sending a crafted HTTP GET request with a malformed `group-id-list` parameter. This results in complete denial of service for the NRF discovery service. free5GC NRF version 1.4.2 fixes the issue. There is no direct workaround at the application level. The recommendation is to apply the provided patch or restrict access to the NRF API to trusted sources only.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"free5GC NRF Discovery EncodeGroupId Function Panics on Malformed group-id-list Parameter","id":"CVE-2026-33062","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"free5gc:free5gc","products":["free5gc:free5gc"],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"free5GC AUSF UE Authentication Panic on Nil SuciSupiMap Interface Conversion","id":"CVE-2026-33063"},"packages":[{"ecosystem":"Go","fixed":["1.4.2"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/nrf","purl":null,"source":"GHSA-7c47-xr7q-p6hg"},{"ecosystem":"Go","fixed":["1.4.2"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/nrf","purl":"pkg:golang/github.com/free5gc/nrf","source":"GHSA-7c47-xr7q-p6hg"},{"ecosystem":"Go","fixed":["1.4.2"],"introduced":["0"],"last_affected":[],"package":"github.com/free5gc/nrf","purl":"pkg:golang/github.com/free5gc/nrf","source":"GO-2026-4756"}],"prev":{"headline":"Jexactyl has Stored DOM Cross-Site Scripting (XSS) via unescaped JSON in Blade template","id":"CVE-2026-33061"},"products":["nrf"],"published":"2026-03-20","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 SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers","id":"CVE-2026-44329","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-21","vendors":["free5gc"]},"summary":"Remote attackers can crash the free5GC NRF discovery service by sending malformed HTTP requests, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-33062/"}