{"answers":{"affected":"4 open source packages ship an affected version, including undici. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-85014 in the wild and no public exploit code.","fix":"Upgrade undici to a fixed version for your release line: 7.29.1 or 8.10.2.","what":"CVE-2026-85014 is a medium-severity denial of service vulnerability in Nodejs Undici, published on 4 Sep 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-2026-85014 and fix it if it is affected.\n\nWhat it is: CVE-2026-85014 is a medium-severity denial of service vulnerability in Nodejs Undici, published on 4 Sep 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-2026-85014 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- undici (npm): affected from 7.0.0; fixed in 7.29.1\n- undici (npm): affected from 7.0.0; fixed in 7.29.1\n- undici (npm): affected from 8.0.0; fixed in 8.10.2\n- undici (npm): affected from 8.0.0; fixed in 8.10.2\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-2026-85014/ (Markdown: https://insights.sbomify.com/CVE-2026-85014/index.md)","id":"CVE-2026-85014","markdown":"https://insights.sbomify.com/CVE-2026-85014/index.md","name":"CVE-2026-85014","record":{"aliases":["CLEANSTART-2026-BJ62373","CLEANSTART-2026-BZ98480","CLEANSTART-2026-CA85404","DEBIAN-CVE-2026-85014","ECHO-a7c6-1ae0-8ec1","GHSA-rx4f-c7p8-82vq","MINI-4gmm-273v-699h","MINI-596h-qmx5-hghf","MINI-5cmm-p8fj-6vp5","MINI-767c-x9xj-pm4w","MINI-7cwc-jr88-jc5h","MINI-924j-7m4v-qhg4","MINI-9q4c-42gw-p6j3","MINI-c723-628f-8pgw","MINI-c7w3-rw3r-q6x3","MINI-cr3j-xg7q-gvqx","MINI-fx57-fqvx-6r69","MINI-gmw5-rqm9-9jr8","MINI-h8rx-fgw6-x6wh","MINI-jpxh-36fr-4fpx","MINI-q4wj-gppv-qqrq","MINI-qwfh-v54f-vrqq","ROOT-APP-NPM-CVE-2026-85014","UBUNTU-CVE-2026-85014"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js HTTP client","requires_auth":"none","summary":"An untrusted server can crash a Node.js application using undici's WebSocketStream by abruptly closing the TCP connection, causing an unhandled rejection.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"openjs","cpe":[{"product":"undici","vendor":"nodejs"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-754","name":"Improper Check for Unusual or Exceptional Conditions"},{"id":"CWE-248","name":"Uncaught Exception"}],"description":"undici's experimental WebSocketStream client crashes the whole Node.js process when a remote peer closes the TCP connection without a WebSocket close handshake. On an unclean close the internal socket-close handler calls abort on the writable stream unconditionally and discards the returned promise, but per the WHATWG Streams standard aborting a locked writable returns a promise that rejects with a TypeError. Because the application holds a writer on that writable, which is the only way to write, the rejection is never observed and Node's default unhandled-rejection behavior terminates the process. An untrusted server can therefore crash a client with a single abrupt disconnect, with no authentication and no application mistake. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.","ecosystems":["npm"],"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":"undici vulnerable to Denial of Service via WebSocketStream unclean close","id":"CVE-2026-85014","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"nodejs:undici","products":["nodejs:undici"],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"Unlimited Elements For Elementor \u003c 2.0.21 - Authenticated Arbitrary File Write via Path Traversal","id":"CVE-2026-85015"},"packages":[{"ecosystem":"npm","fixed":["7.29.1"],"introduced":["7.0.0"],"last_affected":[],"package":"undici","purl":null,"source":"GHSA-rx4f-c7p8-82vq"},{"ecosystem":"npm","fixed":["7.29.1"],"introduced":["7.0.0"],"last_affected":[],"package":"undici","purl":"pkg:npm/undici","source":"GHSA-rx4f-c7p8-82vq"},{"ecosystem":"npm","fixed":["8.10.2"],"introduced":["8.0.0"],"last_affected":[],"package":"undici","purl":null,"source":"GHSA-rx4f-c7p8-82vq"},{"ecosystem":"npm","fixed":["8.10.2"],"introduced":["8.0.0"],"last_affected":[],"package":"undici","purl":"pkg:npm/undici","source":"GHSA-rx4f-c7p8-82vq"}],"prev":{"headline":"Command injection in Red Hat Enterprise Linux 10","id":"CVE-2026-85013"},"products":["undici"],"published":"2026-09-04","related":[{"cvss_score":7.5,"headline":"undici WebSocket client vulnerable to Denial of Service via failed HTTP/2 handshake","id":"CVE-2026-109855","kev_date_added":null,"published":"2026-10-15"},{"cvss_score":7.5,"headline":"undici vulnerable to Denial of Service via unhandled error on excessive content-encodings","id":"CVE-2026-109869","kev_date_added":null,"published":"2026-10-15"},{"cvss_score":7.5,"headline":"undici vulnerable to Denial of Service via TLS 1.2 certificate-changing renegotiation","id":"CVE-2026-87018","kev_date_added":null,"published":"2026-10-15"},{"cvss_score":7.5,"headline":"undici vulnerable to Denial of Service via unrequested WebSocket subprotocol","id":"CVE-2026-19534","kev_date_added":null,"published":"2026-09-04"},{"cvss_score":7.5,"headline":"undici WebSocket client vulnerable to denial of service via fragment count bypass","id":"CVE-2026-12151","kev_date_added":null,"published":"2026-06-17"},{"cvss_score":7.5,"headline":"undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse","id":"CVE-2026-6734","kev_date_added":null,"published":"2026-06-17"},{"cvss_score":7.5,"headline":"undici WebSocket client vulnerable to denial of service via cumulative fragment bypass","id":"CVE-2026-9675","kev_date_added":null,"published":"2026-06-17"}],"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":"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":"2026-09-04","vendors":["undici"]},"summary":"An untrusted server can crash a Node.js application using undici's WebSocketStream by abruptly closing the TCP connection, causing an unhandled rejection.","url":"https://insights.sbomify.com/CVE-2026-85014/"}