{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-45490 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2024-45490 is a critical vulnerability in Libexpat Project Libexpat, published on 30 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-45490 and fix it if it is affected.\n\nWhat it is: CVE-2024-45490 is a critical vulnerability in Libexpat Project Libexpat, published on 30 Aug 2024. 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-2024-45490 in the wild and no public exploit code.\n\nAffected product: Libexpat Project 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-2024-45490/ (Markdown: https://insights.sbomify.com/CVE-2024-45490/index.md)","id":"CVE-2024-45490","markdown":"https://insights.sbomify.com/CVE-2024-45490/index.md","name":"CVE-2024-45490","record":{"aliases":["ALPINE-CVE-2024-45490","AZL-48369","AZL-48372","BELL-CVE-2024-45490","CLEANSTART-2026-GS34408","CLSA-2025-1761902260","DEBIAN-CVE-2024-45490","GHSA-4hvh-m426-wv8w","JLSEC-2025-62","OESA-2024-2102","UBUNTU-CVE-2024-45490"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"XML parsing library","requires_auth":"none","summary":"An integer overflow in libexpat allows attackers to cause a denial of service via negative length inputs in XML_ParseBuffer.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"libexpat","vendor":"libexpat_project"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-611","name":"Improper Restriction of XML External Entity Reference"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-24","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-24T14:36:40Z","kind":"github_poc","ref":"https://github.com/jstjep00/CVE-2024-45490-libexpat-poc","stars":0,"title":"PoC + Docker test harness for CVE-2024-45490 (libexpat XML_ParseBuffer negative length integer handling issue)"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Integer overflow in n/a","id":"CVE-2024-45490","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"libexpat_project:libexpat","products":["libexpat_project:libexpat"],"type":"integer_overflow","year":"2024"},"n_packages":0,"n_references":2,"next":{"headline":"Integer overflow in n/a","id":"CVE-2024-45491"},"packages":[],"prev":{"headline":"Misconfiguration in n/a","id":"CVE-2024-45489"},"products":["n/a"],"published":"2024-08-30","related":[{"cvss_score":8.7,"headline":"Expat Denial of Service via storeAtts() Quadratic Complexity","id":"CVE-2026-66046","kev_date_added":null,"published":"2026-08-18"},{"cvss_score":8.1,"headline":"Integer overflow in n/a","id":"CVE-2021-46143","kev_date_added":null,"published":"2022-01-06"},{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2017-11742","kev_date_added":null,"published":"2017-07-30"},{"cvss_score":7.5,"headline":"Denial of service in libexpat","id":"CVE-2025-59375","kev_date_added":null,"published":"2025-09-15"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-52425","kev_date_added":null,"published":"2024-02-04"},{"cvss_score":7.3,"headline":"Integer overflow in n/a","id":"CVE-2024-45491","kev_date_added":null,"published":"2024-08-30"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["n/a"]},"summary":"An integer overflow in libexpat allows attackers to cause a denial of service via negative length inputs in XML_ParseBuffer.","url":"https://insights.sbomify.com/CVE-2024-45490/"}