{"answers":{"affected":"1 open source package ship an affected version, including bandit.","exploited":"There is no known exploitation of CVE-2026-114213 in the wild and no public exploit code.","fix":"Upgrade bandit to 1.14.0 or later.","what":"CVE-2026-114213 is a high-severity vulnerability in mtrudel bandit, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114213 and fix it if it is affected.\n\nWhat it is: CVE-2026-114213 is a high-severity vulnerability in mtrudel bandit, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-114213 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- bandit (Hex): affected from 1.11.0; fixed in 1.14.0\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-2026-114213/ (Markdown: https://insights.sbomify.com/CVE-2026-114213/index.md)","id":"CVE-2026-114213","markdown":"https://insights.sbomify.com/CVE-2026-114213/index.md","name":"CVE-2026-114213","record":{"aliases":["EEF-CVE-2026-114213","GHSA-cpx7-qf6w-jc63","UBUNTU-CVE-2026-114213"],"analysis":null,"analysis_generated_by":null,"assigner":"EEF","cpe":[],"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-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Allocation of Resources Without Limits or Throttling vulnerability in the WebSocket fragment reassembly of mtrudel bandit allows an unauthenticated remote attacker to exhaust server memory via a fragmented message made of many 1-byte continuation frames.\n\nBandit.WebSocket.Connection checks max_fragmented_message_size against the payload bytes received, but keeps every non-final continuation frame as a new list cell around its own binary, and nothing limits the number of fragments. A 1-byte fragment costs 7 bytes on the wire but about 150 to 170 bytes of server memory, so one connection can hold about 150 times the configured limit, roughly 1.2 to 1.4 GB at the default 8 MB. Ping frames between fragments keep the connection alive past the idle timeout.\n\nThis issue affects bandit: from 1.11.0 before 1.14.0.","ecosystems":["Hex"],"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":"WebSocket 1-byte continuation frames bypass `max_fragmented_message_size` in Bandit","id":"CVE-2026-114213","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":5,"next":{"headline":"Incorrect Authorization vulnerability in ash-project ash allows a client to read destination records unrelated to the source record through","id":"CVE-2026-114214"},"packages":[{"ecosystem":"Hex","fixed":["1.14.0"],"introduced":["1.11.0"],"last_affected":[],"package":"bandit","purl":"pkg:hex/bandit","source":"EEF-CVE-2026-114213"}],"prev":{"headline":"Deserialization of untrusted data in floss","id":"CVE-2026-114198"},"products":["bandit"],"published":"2026-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"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":"2026-10-26","vendors":["mtrudel"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-114213/"}