{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-116538 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-116538 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-116538 is a low-severity vulnerability in mganss HtmlSanitizer, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116538 and fix it if it is affected.\n\nWhat it is: CVE-2026-116538 is a low-severity vulnerability in mganss HtmlSanitizer, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116538 in the wild and no public exploit code.\n\nAffected product: mganss HtmlSanitizer. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-116538/ (Markdown: https://insights.sbomify.com/CVE-2026-116538/index.md)","id":"CVE-2026-116538","markdown":"https://insights.sbomify.com/CVE-2026-116538/index.md","name":"CVE-2026-116538","record":{"aliases":["GHSA-qw8f-hph4-7r4g"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"HtmlSanitizer before 9.2.1039 and 10.0 prereleases before 10.0.1037-beta contains a cross-site scripting vulnerability because SanitizeDom(string) never sanitizes attributes on the html and body wrapper elements. Attackers can supply input with a second body or html tag carrying event handlers like onload, executing script when applications render serialized document or body outer HTML.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"HtmlSanitizer before 9.2.1039 XSS via SanitizeDom Body and HTML Attributes","id":"CVE-2026-116538","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":9,"next":{"headline":"Netty netty-tcnative before 2.0.84.Final Heap Buffer Overflow via OpenSSL BIO","id":"CVE-2026-116539"},"packages":[],"prev":{"headline":"HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk.","id":"CVE-2026-116531"},"products":["HtmlSanitizer"],"published":"2026-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-26","vendors":["mganss"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116538/"}