{"id":"CVE-2026-101043","revision":"5517ee01813a420eb4b84d7e8e4e2588","records":[{"revision":"5517ee01813a420eb4b84d7e8e4e2588","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-101043","aliases":[],"title":"pnpm 11.0.0 before 11.11.0 Environment Variable Exfiltration via Proxy Settings","description":"pnpm versions 11.0.0 before 11.11.0 and 10.7.0 before 10.34.5 expand ${VAR} environment-variable placeholders in the httpProxy, httpsProxy, and noProxy settings read from a project's pnpm-workspace.yaml. Because the manifest is repository-controlled and the proxy keys were omitted from the request-destination key set that otherwise suppresses placeholder expansion for untrusted manifests (as already done for registry, pnprServer, registries and namedRegistries), an attacker who controls a repository's pnpm-workspace.yaml can cause a victim who clones the repository and runs a pnpm command (e.g. pnpm install) to expand environment secrets such as NPM_TOKEN or GITHUB_TOKEN into a proxy hostname or userinfo and route install traffic — and the corresponding DNS lookups — through an attacker-controlled host. The exfiltration occurs during configuration loading, before any lifecycle script executes. Fixed in pnpm 11.11.0 and 10.34.5.","state":0,"publishedAt":"2026-09-27T17:02:33.119+00:00","modifiedAt":"2026-09-30T15:47:12.588+00:00","affected":[{"ecosystem":"Vendor product","name":"pnpm","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pnpm\",\n                    \"product\": \"pnpm\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/pnpm\",\n                    \"versions\": [\n                        {\n                            \"version\": \"11.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"11.11.0\"\n                        },\n                        {\n                            \"version\": \"11.11.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"pnpm","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pnpm\",\n                    \"product\": \"pnpm\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/pnpm\",\n                    \"versions\": [\n                        {\n                            \"version\": \"10.7.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"10.34.5\"\n                        },\n                        {\n                            \"version\": \"10.34.5\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","score":8.3,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","score":7.4,"severity":"HIGH"}],"references":["https://github.com/pnpm/pnpm/security/advisories/GHSA-vx52-2968-3vc6","https://www.vulncheck.com/advisories/pnpm-11.0.0-before-11.11.0-environment-variable-exfiltration-via-proxy-settings"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101043","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-101043","identifiers":["CVE-2026-101043"]},"retained":false,"historicalAffected":[]}],"coverage":[]}