{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-78839 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-78839 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-78839 is a high-severity vulnerability in n/a, published on 4 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-2026-78839 and fix it if it is affected.\n\nWhat it is: CVE-2026-78839 is a high-severity vulnerability in n/a, published on 4 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-2026-78839 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2026-78839/ (Markdown: https://insights.sbomify.com/CVE-2026-78839/index.md)","id":"CVE-2026-78839","markdown":"https://insights.sbomify.com/CVE-2026-78839/index.md","name":"CVE-2026-78839","record":{"aliases":["GHSA-5w46-w28q-f95g"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MachForm","requires_auth":"none","summary":"Attackers can execute arbitrary code by uploading a crafted .phar file to MachForm, posing a critical risk to web application security.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"An arbitrary file upload vulnerability in AppNitro MachForm v30 allows attackers to execute arbitrary code via uploading a crafted .phar file.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-02","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-02T10:45:14Z","kind":"github_poc","ref":"https://github.com/nabeelmkhan/CVE-2026-78839","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":null,"headline":"File upload in n/a","id":"CVE-2026-78839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Aidot products Linkind Matter Smart Plug 1.01.32, OREiN Matter Smart Light Bulb 3.15.21, and Linkind Wi-Fi Smart Light Bulb 3.30.17 are vuln","id":"CVE-2026-78845"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2026-78838"},"products":["n/a"],"published":"2026-09-04","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-09","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code by uploading a crafted .phar file to MachForm, posing a critical risk to web application security.","url":"https://insights.sbomify.com/CVE-2026-78839/"}