{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-66729 exists.","fix":"No fix has been published for CVE-2026-66729 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66729 is a high-severity vulnerability in boazsegev facil.io, published on 27 Jul 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-2026-66729 and fix it if it is affected.\n\nWhat it is: CVE-2026-66729 is a high-severity vulnerability in boazsegev facil.io, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-66729 exists.\n\nAffected product: boazsegev facil.io. 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-2026-66729/ (Markdown: https://insights.sbomify.com/CVE-2026-66729/index.md)","id":"CVE-2026-66729","markdown":"https://insights.sbomify.com/CVE-2026-66729/index.md","name":"CVE-2026-66729","record":{"aliases":["GHSA-g2qx-6r8w-37px"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"facil.io web library","requires_auth":"none","summary":"Remote attackers can crash the server via integer underflow in the multipart MIME parser, requiring an upgrade to facil.io.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"facil.io 0.6.0 through 0.7.6 contains an integer underflow vulnerability in the multipart MIME body parser that allows unauthenticated remote attackers to crash the server process by sending a crafted Content-Disposition header with an empty field name. Attackers can trigger a uint32_t wraparound in http_mime_parser.h causing an out-of-bounds memory read past the name pointer, resulting in a bus fault that crashes the handling worker with a single POST request.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-24","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-24T22:22:35Z","kind":"github_poc","ref":"https://github.com/theopaid/CVE-2026-66729-Out-of-Bounds-Read-in-facil.io-MIME-Parser-leads-to-Server-Crash","stars":1,"title":"Security Advisory: Out-of-Bounds Read in facil.io MIME Parser leads to Server crash"}],"tier":"weaponised"},"has_fix":false,"headline":"facil.io 0.6.0 - 0.7.6 Integer Underflow DoS via Multipart MIME Body Parser","id":"CVE-2026-66729","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"facil.io 0.6.0 - 0.7.6 Infinite Loop DoS via Multipart MIME Body Parser","id":"CVE-2026-66730"},"packages":[],"prev":{"headline":"Permission Bypass Via Undocumented HTTP Methods In MWDB Core","id":"CVE-2026-66724"},"products":["facil.io"],"published":"2026-07-27","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-31","vendors":["boazsegev"]},"summary":"Remote attackers can crash the server via integer underflow in the multipart MIME parser, requiring an upgrade to facil.io.","url":"https://insights.sbomify.com/CVE-2026-66729/"}