{"answers":{"affected":"3 open source packages ship an affected version, including github.com/ellanetworks/core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33904 in the wild and no public exploit code.","fix":"Upgrade github.com/ellanetworks/core to 1.7.0 or later.","what":"CVE-2026-33904 is a medium-severity denial of service vulnerability in ellanetworks core, published on 27 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-33904 and fix it if it is affected.\n\nWhat it is: CVE-2026-33904 is a medium-severity denial of service vulnerability in ellanetworks core, published on 27 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-33904 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/ellanetworks/core (Go): affected all versions; fixed in 1.7.0\n- github.com/ellanetworks/core (Go): affected all versions; fixed in 1.7.0\n- github.com/ellanetworks/core (Go): affected all versions; fixed in 1.7.0\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-2026-33904/ (Markdown: https://insights.sbomify.com/CVE-2026-33904/index.md)","id":"CVE-2026-33904","markdown":"https://insights.sbomify.com/CVE-2026-33904/index.md","name":"CVE-2026-33904","record":{"aliases":["GHSA-9h59-p45g-445h","GO-2026-4874"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"5G core network","requires_auth":"none","summary":"An attacker with N2 interface access can trigger a deadlock in Ella Core's AMF, causing a denial of service for all subscribers.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"ella_core","vendor":"ellanetworks"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-833","name":"Deadlock"}],"description":"Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, a deadlock in the AMF's SCTP notification handler causes the entire AMF control plane to hang until the process is restarted. An attacker with access to the N2 interface can cause Ella Core to hang, resulting in a denial of service for all subscribers. Version 1.7.0 adds deferred Radio cleanup in serveConn SCTP server so that every connection exit path removes the radio. Remove the stale-entry scan from SCTP Notification handling.","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":"Ella Core has a Denial of Service via SCTP connection cleanup deadlock","id":"CVE-2026-33904","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"ImageMagick has an Out-of-Bounds read via -sample operation","id":"CVE-2026-33905"},"packages":[{"ecosystem":"Go","fixed":["1.7.0"],"introduced":["0"],"last_affected":[],"package":"github.com/ellanetworks/core","purl":null,"source":"GHSA-9h59-p45g-445h"},{"ecosystem":"Go","fixed":["1.7.0"],"introduced":["0"],"last_affected":[],"package":"github.com/ellanetworks/core","purl":"pkg:golang/github.com/ellanetworks/core","source":"GHSA-9h59-p45g-445h"},{"ecosystem":"Go","fixed":["1.7.0"],"introduced":["0"],"last_affected":[],"package":"github.com/ellanetworks/core","purl":"pkg:golang/github.com/ellanetworks/core","source":"GO-2026-4874"}],"prev":{"headline":"Ella Core panics when processing a crafted NGAP LocationReport message","id":"CVE-2026-33903"},"products":["core"],"published":"2026-03-27","related":[{"cvss_score":7.5,"headline":"Ella Core panics on malformed NGAP Location Report","id":"CVE-2026-33282","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":7.5,"headline":"Ella Core: Unauthenticated AMF DoS via malformed InitialUEMessage with undersized integrity-protected NAS payload","id":"CVE-2026-32319","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":7.2,"headline":"Ella Core has Privilege Escalation via Database Restore by NetworkManager role","id":"CVE-2026-33906","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":6.5,"headline":"Ella Core panics when processing a crafted NGAP LocationReport message","id":"CVE-2026-33903","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":6.5,"headline":"Ella Core Panics during NAS Authentication Response/Failure with missing IEs","id":"CVE-2026-33907","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":6.5,"headline":"Ella Core panics on invalid PDU Session IDs in NGAP messages","id":"CVE-2026-33281","kev_date_added":null,"published":"2026-03-23"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-31","vendors":["ellanetworks"]},"summary":"An attacker with N2 interface access can trigger a deadlock in Ella Core's AMF, causing a denial of service for all subscribers.","url":"https://insights.sbomify.com/CVE-2026-33904/"}