{"id":"CVE-2026-55487","state":"PUBLISHED","title":"pnpm: manifest identity spoof satisfies allowBuilds and runs attacker lifecycle","description":"pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix normalizer also stripped parenthesized text from git, URL, tarball, file, and other opaque locators. Approval for one source string could therefore authorize a different attacker-controlled source whose locator normalized to the same value. This vulnerability is fixed in 10.34.2 and 11.5.3.","publishedAt":"2026-06-25T16:41:12.441Z","updatedAt":"2026-06-25T18:03:06.773Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["pnpm pnpm"],"affected":[{"vendor":"pnpm","product":"pnpm","versions":[{"version":"< 10.34.2","status":"affected"},{"version":">= 11.0.0, < 11.5.3","status":"affected"}]}],"references":["https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57r"],"weaknesses":["CWE-346","CWE-693","CWE-829"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55487.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55487","state":"PUBLISHED","datePublished":"2026-06-25T16:41:12.441Z","dateUpdated":"2026-06-25T18:03:06.773Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T22:28:27.061Z"},"containers":{"cna":{"title":"pnpm: manifest identity spoof satisfies allowBuilds and runs attacker lifecycle","descriptions":[{"lang":"en","value":"pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix normalizer also stripped parenthesized text from git, URL, tarball, file, and other opaque locators. Approval for one source string could therefore authorize a different attacker-controlled source whose locator normalized to the same value. This vulnerability is fixed in 10.34.2 and 11.5.3."}],"affected":[{"vendor":"pnpm","product":"pnpm","versions":[{"version":"< 10.34.2","status":"affected"},{"version":">= 11.0.0, < 11.5.3","status":"affected"}]}],"references":[{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57r","name":"https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57r","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-346","lang":"en","description":"CWE-346: Origin Validation Error","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-693","lang":"en","description":"CWE-693: Protection Mechanism Failure","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-829","lang":"en","description":"CWE-829: Inclusion of Functionality from Untrusted Control Sphere","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-25T16:41:12.441Z"},"source":{"advisory":"GHSA-5wx6-mg75-v57r","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57r","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-25T18:02:49.413766Z","id":"CVE-2026-55487","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-25T18:03:06.773Z"}}]}}}