{"id":"CVE-2026-104843","title":"uv is a Python package and project manager written in Rust","summary":"uv is a Python package and project manager written in Rust. From 0.12.7 until 0.12.18, uv wheel extraction on Windows can process a malicious wheel in a way that writes a file outside the installation prefix, including an executable in a…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-22"],"vendor":"astral-sh","product":"uv","affected":["uv >= 0.12.7, < 0.12.18"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T18:44:11.270","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104843","references":[{"url":"https://github.com/astral-sh/uv/commit/67169645278ce082638d619beefa6d062540843b","label":"security-advisories@github.com"},{"url":"https://github.com/astral-sh/uv/pull/21923","label":"security-advisories@github.com"},{"url":"https://github.com/astral-sh/uv/releases/tag/0.12.18","label":"security-advisories@github.com"},{"url":"https://github.com/astral-sh/uv/security/advisories/GHSA-2cv4-cqwr-gwf7","label":"security-advisories@github.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104843.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-104843"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2545243"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-104843"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104843"},{"url":"https://github.com/advisories/GHSA-2cv4-cqwr-gwf7"},{"url":"https://github.com/astral-sh/uv"},{"url":"https://pypi.org/project/uv"},{"url":"https://access.redhat.com/errata/RHSA-2026:84734"}],"tags":["nvd","cve.org","csaf","vex","red-hat","ghsa","pip","osv"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-02T15:57:14.347637Z"},"cvssSource":"cna","ingestedAt":"2026-10-02T16:22:59.526Z","scores":{"cna":5.9,"vendor":7.8},"epss":0.00426,"epssPercentile":0.3665,"aliases":["GHSA-2cv4-cqwr-gwf7","PYSEC-2026-4305"],"ecosystem":"pip","patched":["uv 0.12.18","uv 0.12.18"],"slug":"CVE-2026-104843","body":"## Overview\n\nuv is a Python package and project manager written in Rust. From 0.12.7 until 0.12.18, uv wheel extraction on Windows can process a malicious wheel in a way that writes a file outside the installation prefix, including an executable in a directory already present on the user's PATH. Non-Windows hosts are not affected. This issue is fixed in version 0.12.18.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Lightspeed Core, Lightspeed Services for Advanced Cluster Management, OpenShift Lightspeed, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI) · no fix planned: OpenShift Lightspeed, Red Hat Enterprise Linux AI (RHEL AI) 3, Lightspeed Core, Lightspeed Services for Advanced Cluster Management, … · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104843.json)\n- **RHSA-2026:84734** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84734)\n\n## Package advisory (CVE-2026-104843)\n\nAffected packages:\n\n- `uv >= 0.12.7, < 0.12.18`\n- `uv >= 0.12.7, < 0.12.18`\n\nPatched in:\n\n- `uv 0.12.18`\n- `uv 0.12.18`\n\nSource: https://github.com/advisories/GHSA-2cv4-cqwr-gwf7","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}