{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-124317 in the wild and no public exploit code.","exposure":"","fix":"Upgrade to a fixed version.","what":"CVE-2026-124317 is a medium-severity vulnerability in libexpat, published on 7 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-124317 and fix it if it is affected.\n\nWhat it is: CVE-2026-124317 is a medium-severity vulnerability in libexpat, published on 7 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-124317 in the wild and no public exploit code.\n\nAffected product: libexpat. 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-2026-124317/ (Markdown: https://insights.sbomify.com/CVE-2026-124317/index.md)","id":"CVE-2026-124317","markdown":"https://insights.sbomify.com/CVE-2026-124317/index.md","name":"CVE-2026-124317","record":{"aliases":["AZL-112841","AZL-113119","AZL-113248","DEBIAN-CVE-2026-124317","ECHO-1c7a-4e4f-0368","GHSA-wm22-jw4m-rfcf","UBUNTU-CVE-2026-124317"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-126","name":"Buffer Over-read"}],"description":"libexpat through 2.10.0 contains an out-of-bounds read vulnerability in unknown_toUtf8() and unknown_toUtf16() in xmltok.c when handling application-registered unknown encodings. Attackers can supply a document ending in a truncated multibyte sequence so the convert callback reads past the parse buffer, leaking adjacent memory or crashing applications.","ecosystems":[],"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":"libexpat through 2.10.0 Out-of-Bounds Read via unknown_toUtf8 and unknown_toUtf16","id":"CVE-2026-124317","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle Fields","id":"CVE-2026-124318"},"nickname":null,"packages":[],"prev":{"headline":"Frappe ERPNext before 15.121.4 and 16.36.0 Missing Authorization via get_linked_material_requests","id":"CVE-2026-124316"},"products":["libexpat"],"published":"2026-11-07","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-11","vendors":["libexpat"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-124317/"}