{"answers":{"affected":"2 open source packages ship an affected version, including dulwich.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114094 exists.","fix":"Upgrade dulwich to 1.2.9 or later.","what":"CVE-2026-114094 is a high-severity vulnerability in jelmer dulwich, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114094 and fix it if it is affected.\n\nWhat it is: CVE-2026-114094 is a high-severity vulnerability in jelmer dulwich, published on 21 Oct 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114094 exists.\n\nAffected packages and fixed versions:\n- dulwich (PyPI): affected all versions; fixed in 1.2.9\n- dulwich (PyPI): affected all versions; fixed in 1.2.9\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-2026-114094/ (Markdown: https://insights.sbomify.com/CVE-2026-114094/index.md)","id":"CVE-2026-114094","markdown":"https://insights.sbomify.com/CVE-2026-114094/index.md","name":"CVE-2026-114094","record":{"aliases":["AZL-109890","CLSA-2026-1791442146","CLSA-2026-1793014066","ECHO-6327-848d-ed17","GHSA-8mcx-5rqc-vhmf","GHSA-pxf3-54vf-v638","MINI-7c25-chwj-r9qv","MINI-mmp4-48vx-hrjf","UBUNTU-CVE-2026-114094"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Dulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git tree path elements on Windows, allowing arbitrary file write. Attackers can craft a malicious repository with a tree entry named 'C:' that bypasses NTFS validation and writes files outside the worktree to achieve remote code execution.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Dulwich before 1.2.9 Arbitrary File Write via DOS drive letter paths","id":"CVE-2026-114094","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"Dulwich before 1.2.9 Infinite Loop DoS via Pack.resolve_object","id":"CVE-2026-114095"},"packages":[{"ecosystem":"PyPI","fixed":["1.2.9"],"introduced":["0"],"last_affected":[],"package":"dulwich","purl":null,"source":"GHSA-8mcx-5rqc-vhmf"},{"ecosystem":"PyPI","fixed":["1.2.9"],"introduced":["0"],"last_affected":[],"package":"dulwich","purl":"pkg:pypi/dulwich","source":"GHSA-8mcx-5rqc-vhmf"}],"prev":{"headline":"Trigger.dev before 4.5.6 Cross-Site Request Forgery via /logout Endpoint","id":"CVE-2026-114093"},"products":["dulwich"],"published":"2026-10-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-28","vendors":["jelmer"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-114094/"}