{"answers":{"affected":"2 open source packages ship an affected version, including fast-xml-builder.","exploited":"There is no known exploitation of CVE-2026-44664 in the wild and no public exploit code.","fix":"Upgrade fast-xml-builder to 1.1.6 or later.","what":"CVE-2026-44664 is a medium-severity cross-site scripting vulnerability in NaturalIntelligence fast-xml-builder, published on 13 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-44664 and fix it if it is affected.\n\nWhat it is: CVE-2026-44664 is a medium-severity cross-site scripting vulnerability in NaturalIntelligence fast-xml-builder, published on 13 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-44664 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- fast-xml-builder (npm): affected from 1.1.5; fixed in 1.1.6\n- fast-xml-builder (npm): affected from 1.1.5; fixed in 1.1.6\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-2026-44664/ (Markdown: https://insights.sbomify.com/CVE-2026-44664/index.md)","id":"CVE-2026-44664","markdown":"https://insights.sbomify.com/CVE-2026-44664/index.md","name":"CVE-2026-44664","record":{"aliases":["ECHO-7046-085f-179a","GHSA-45c6-75p6-83cc","MINI-7qqw-r5m9-38gm","MINI-83f7-qrgh-ghfj","MINI-9jf8-mcg2-r99q","MINI-gmgf-4mg5-fqrq","MINI-hx5x-4j49-353x","MINI-jvpw-h8mf-7c6p","MINI-q4hx-mhw7-rhp8","MINI-x622-wv53-hh9r","ROOT-APP-NPM-CVE-2026-44664"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript XML builder","requires_auth":"none","summary":"An attacker can inject arbitrary XML or HTML content by bypassing comment sanitization, potentially leading to cross-site scripting or code execution.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-91","name":"XML Injection"}],"description":"fast-xml-builder builds XML from JSON. In 1.1.5, the fix for CVE-2026-41650 in fast-xml-parser sanitizes -- sequences in XML comment content using .replace(/--/g, '- -'). This skip the values containing three consecutive dashes (e.g., ---\u003e...), allowing an attacker to break out of an XML comment and inject arbitrary XML/HTML content. This vulnerability is fixed in 1.1.6.","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":"fast-xml-builder: Comment Value bypass regex","id":"CVE-2026-44664","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"fast-xml-builder: Attribute values with unwanted quotes can bypass malicious or unwanted attributes","id":"CVE-2026-44665"},"packages":[{"ecosystem":"npm","fixed":["1.1.6"],"introduced":["1.1.5"],"last_affected":[],"package":"fast-xml-builder","purl":null,"source":"GHSA-45c6-75p6-83cc"},{"ecosystem":"npm","fixed":["1.1.6"],"introduced":["1.1.5"],"last_affected":[],"package":"fast-xml-builder","purl":"pkg:npm/fast-xml-builder","source":"GHSA-45c6-75p6-83cc"}],"prev":{"headline":"OpenEXR: Integer overflow in the HTJ2K decoder leads to heap-buffer-overflow","id":"CVE-2026-44663"},"products":["fast-xml-builder"],"published":"2026-05-13","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-13","vendors":["NaturalIntelligence"]},"summary":"An attacker can inject arbitrary XML or HTML content by bypassing comment sanitization, potentially leading to cross-site scripting or code execution.","url":"https://insights.sbomify.com/CVE-2026-44664/"}