{"id":"EM-20261103-QDRQ","url":"https://cyber.eventmonitor.net/incident/EM-20261103-QDRQ/","type":"cve","title":"isomorphic-git Vulnerability (CVE-2026-63395)","subtitle":"CVE-2026-63395","subject":"CVE-2026-63395","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-03T20:18:14.917Z","firstSignal":"2026-11-03T19:48:11.000Z","lastSignal":"2026-11-03T20:18:14.917Z","updated":"2026-11-04T14:43:58.877Z","revision":1,"life":[{"status":"Born","at":"2026-11-03T20:18:14.917Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-03T20:18:14.917Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T19:48:11.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-03T20:18:14.917Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261103-QDRQ created."}],"stages":[{"name":"Disclosed","at":"2026-11-03T20:18:14.917Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-03T20:18:14.917Z","detail":"CVSS 8.8 · EPSS 0.7%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-03T19:48:11.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T19:48:11.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-63395 (important)","text":"isomorphic-git: isomorphic-git: Arbitrary code execution via directory symlink traversal","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-63395.json"},{"at":"2026-11-03T20:18:14.917Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-63395 (CVSS 8.8)","text":"isomorphic-git is a pure JavaScript implementation of Git for Node.js and browsers. Prior to 1.38.6, isomorphic-git's git.checkout writes new child paths through symlinked leading directory components without checking them. A malicious repository can first place a directory symlink and later replace the tree state with a child file beneath that path; the usual trigger is a clone followed by a later pull, while a single clone can trigger the issue when a symlink already exists or the consuming application accesses the tree. With Node fs on Linux or macOS, the operating system can resolve the wr","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63395"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-03T20:18:14.917","score":8.8,"severity":"HIGH","desc":"isomorphic-git is a pure JavaScript implementation of Git for Node.js and browsers. Prior to 1.38.6, isomorphic-git's git.checkout writes new child paths through symlinked leading directory components without checking them. A malicious repository can first place a directory symlink and later replace","product":"","seen":1793803438877},"kev":null,"epss":{"epss":0.00716,"pct":0.53896,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}