{"answers":{"affected":"6 open source packages ship an affected version, including @xmldom/xmldom and xmldom.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-83615 exists.","fix":"Upgrade @xmldom/xmldom to a fixed version for your release line: 0.8.15 or 0.9.12.","what":"CVE-2026-83615 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-2026-83615 and fix it if it is affected.\n\nWhat it is: CVE-2026-83615 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-83615 exists.\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 0.1.5 up to 0.6.0; no fix listed\n- xmldom (npm): affected from 0.1.5 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-2026-83615/ (Markdown: https://insights.sbomify.com/CVE-2026-83615/index.md)","id":"CVE-2026-83615","markdown":"https://insights.sbomify.com/CVE-2026-83615/index.md","name":"CVE-2026-83615","record":{"aliases":["AZL-99359","CLEANSTART-2026-TN18132","DEBIAN-CVE-2026-83615","ECHO-93d3-ae75-ca31","GHSA-965w-775f-mr7g","MINI-4464-m24h-9x7v","MINI-4p8g-wcr5-3prg","MINI-6h4p-6cfv-6qv7","MINI-xvg6-3cwp-6gvx","ROOT-APP-NPM-CVE-2026-83615","UBUNTU-CVE-2026-83615"],"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 by sending crafted XML that exhausts memory due to quadratic namespace map storage in xmldom.","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-770","name":"Allocation of Resources Without Limits or Throttling"}],"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 0.1.5 through 0.6.0, appendElement in lib/sax.js uses _copy to clone the complete currentNSMap for each nested element that declares a new namespace prefix. Keeping every ancestor map live on the parse stack creates quadratic peak namespace-map storage, so a small highly compressible XML document can exhaust the process heap before application validation. 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":"weaponised"},"has_fix":true,"headline":"xmldom: Quadratic-memory consumption","id":"CVE-2026-83615","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: Processing Instruction Target Injection Bypasses requireWellFormed","id":"CVE-2026-83616"},"packages":[{"ecosystem":"npm","fixed":["0.8.15"],"introduced":["0.7.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":null,"source":"GHSA-965w-775f-mr7g"},{"ecosystem":"npm","fixed":["0.8.15"],"introduced":["0.7.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":"pkg:npm/%40xmldom/xmldom","source":"GHSA-965w-775f-mr7g"},{"ecosystem":"npm","fixed":["0.9.12"],"introduced":["0.9.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":null,"source":"GHSA-965w-775f-mr7g"},{"ecosystem":"npm","fixed":["0.9.12"],"introduced":["0.9.0"],"last_affected":[],"package":"@xmldom/xmldom","purl":"pkg:npm/%40xmldom/xmldom","source":"GHSA-965w-775f-mr7g"},{"ecosystem":"npm","fixed":[],"introduced":["0.1.5"],"last_affected":["0.6.0"],"package":"xmldom","purl":null,"source":"GHSA-965w-775f-mr7g"},{"ecosystem":"npm","fixed":[],"introduced":["0.1.5"],"last_affected":["0.6.0"],"package":"xmldom","purl":"pkg:npm/xmldom","source":"GHSA-965w-775f-mr7g"}],"prev":{"headline":"xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` adjacent-text merge","id":"CVE-2026-83614"},"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-03","vendors":["@xmldom","xmldom"]},"summary":"Attackers can cause denial of service by sending crafted XML that exhausts memory due to quadratic namespace map storage in xmldom.","url":"https://insights.sbomify.com/CVE-2026-83615/"}