{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-102633 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-102633 is a high-severity vulnerability in libexpat, published on 29 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-2026-102633 and fix it if it is affected.\n\nWhat it is: CVE-2026-102633 is a high-severity vulnerability in libexpat, published on 29 Sep 2026. 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-2026-102633 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-2026-102633/ (Markdown: https://insights.sbomify.com/CVE-2026-102633/index.md)","id":"CVE-2026-102633","markdown":"https://insights.sbomify.com/CVE-2026-102633/index.md","name":"CVE-2026-102633","record":{"aliases":["ALPINE-CVE-2026-102633","AZL-105048","BELL-CVE-2026-102633","CLSA-2026-1791196479","CLSA-2026-1791791753","DEBIAN-CVE-2026-102633","ECHO-c3aa-d0c7-eaa9","GHSA-533f-rf84-jgcc","UBUNTU-CVE-2026-102633"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"XML parsing library","requires_auth":"none","summary":"Attackers can cause memory corruption or denial of service via malicious XML due to an integer overflow in libexpat's reallocation logic on 32-bit systems.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes. Attackers supplying malicious XML to applications parsing with vulnerable libexpat can cause heap buffer overflow, memory corruption, or denial of service.","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 2.7.2 through 2.8.5 Integer Overflow in expat_realloc","id":"CVE-2026-102633","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"SGLang through 0.5.20 Denial of Service via Duplicate bootstrap_room","id":"CVE-2026-102634"},"packages":[],"prev":{"headline":"authd: Account takeover via username fallback in identity matching after IdP email reassignment","id":"CVE-2026-102631"},"products":["libexpat"],"published":"2026-09-29","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":"2026-09-29","vendors":["libexpat"]},"summary":"Attackers can cause memory corruption or denial of service via malicious XML due to an integer overflow in libexpat's reallocation logic on 32-bit systems.","url":"https://insights.sbomify.com/CVE-2026-102633/"}