{"answers":{"affected":"6 open source packages ship an affected version, including @xmldom/xmldom and xmldom.","exploited":"There is no known exploitation of CVE-2026-83614 in the wild and no public exploit code.","fix":"Upgrade @xmldom/xmldom to a fixed version for your release line: 0.8.15 or 0.9.12.","what":"CVE-2026-83614 is a high-severity denial of service vulnerability in @xmldom xmldom, published on 1 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-2026-83614 and fix it if it is affected.\n\nWhat it is: CVE-2026-83614 is a high-severity denial of service vulnerability in @xmldom xmldom, published on 1 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-2026-83614 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @xmldom/xmldom (npm): affected from 0.7.0; fixed in 0.8.15\n- @xmldom/xmldom (npm): affected from 0.7.0; fixed in 0.8.15\n- @xmldom/xmldom (npm): affected from 0.9.0; fixed in 0.9.12\n- @xmldom/xmldom (npm): affected from 0.9.0; fixed in 0.9.12\n- xmldom (npm): affected from 0.3.0 up to 0.6.0; no fix listed\n- xmldom (npm): affected from 0.3.0 up to 0.6.0; no fix listed\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-2026-83614/ (Markdown: https://insights.sbomify.com/CVE-2026-83614/index.md)","id":"CVE-2026-83614","markdown":"https://insights.sbomify.com/CVE-2026-83614/index.md","name":"CVE-2026-83614","record":{"aliases":["AZL-99357","CLEANSTART-2026-NM00684","CLSA-2026-1790458300","DEBIAN-CVE-2026-83614","ECHO-0a23-0681-ea7b","GHSA-93r5-fhx6-vmg9","MINI-64jr-pfpg-6847","MINI-hhhq-fjph-v94w","MINI-hj4c-j668-x3vv","MINI-w9g5-xjh6-6pq9","ROOT-APP-NPM-CVE-2026-83614","UBUNTU-CVE-2026-83614"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript XML library","requires_auth":"none","summary":"Attackers can cause denial of service in applications using xmldom by submitting malformed XML that triggers quadratic-time parsing and normalization loops.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","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-407","name":"Inefficient Algorithmic Complexity"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom versions 0.3.0 through 0.6.0, two independent quadratic paths can cause denial of service. In lib/sax.js, parseElementStartPart repeatedly rescans a malformed tag name to the next \u003e during single-character recovery; in lib/dom.js, normalize() repeatedly removes and appends adjacent text nodes, causing quadratic reindexing and string rebuilding. The first path is reachable through default DOMParser.parseFromString() processing, while the second is also reachable through a direct normalize() call on a programmatically constructed DOM, and endDocument invokes that normalization after parsing. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom.","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":"xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` adjacent-text merge","id":"CVE-2026-83614","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":6,"n_references":7,"next":{"headline":"xmldom: Quadratic-memory consumption","id":"CVE-2026-83615"},"packages":[{"ecosystem":"npm","fixed":["0.8.15"],"introduced":["0.7.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":null,"source":"GHSA-93r5-fhx6-vmg9"},{"ecosystem":"npm","fixed":["0.8.15"],"introduced":["0.7.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":"pkg:npm/%40xmldom/xmldom","source":"GHSA-93r5-fhx6-vmg9"},{"ecosystem":"npm","fixed":["0.9.12"],"introduced":["0.9.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":null,"source":"GHSA-93r5-fhx6-vmg9"},{"ecosystem":"npm","fixed":["0.9.12"],"introduced":["0.9.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":"pkg:npm/%40xmldom/xmldom","source":"GHSA-93r5-fhx6-vmg9"},{"ecosystem":"npm","fixed":[],"introduced":["0.3.0"],"last_affected":["0.6.0"],"package":"xmldom","purl":null,"source":"GHSA-93r5-fhx6-vmg9"},{"ecosystem":"npm","fixed":[],"introduced":["0.3.0"],"last_affected":["0.6.0"],"package":"xmldom","purl":"pkg:npm/xmldom","source":"GHSA-93r5-fhx6-vmg9"}],"prev":{"headline":"xmldom: Quadratic-time attribute deduplication","id":"CVE-2026-83613"},"products":["xmldom"],"published":"2026-09-01","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":"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":"2026-09-01","vendors":["@xmldom","xmldom"]},"summary":"Attackers can cause denial of service in applications using xmldom by submitting malformed XML that triggers quadratic-time parsing and normalization loops.","url":"https://insights.sbomify.com/CVE-2026-83614/"}