{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54328","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-12T18:42:02.224Z","datePublished":"2026-06-23T19:25:04.051Z","dateUpdated":"2026-06-24T13:38:04.242Z"},"containers":{"cna":{"title":"Pi: Predictable temporary extension install paths allow local privilege escalation on shared Linux hosts","problemTypes":[{"descriptions":[{"cweId":"CWE-379","lang":"en","description":"CWE-379: Creation of Temporary File in Directory with Insecure Permissions","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/earendil-works/pi/security/advisories/GHSA-jfgx-wxx8-mp94","tags":["x_refsource_CONFIRM"],"url":"https://github.com/earendil-works/pi/security/advisories/GHSA-jfgx-wxx8-mp94"},{"name":"https://github.com/earendil-works/pi/pull/5345","tags":["x_refsource_MISC"],"url":"https://github.com/earendil-works/pi/pull/5345"},{"name":"https://github.com/earendil-works/pi/commit/a98e087e5d08ea2a536bf73dbb0aebb87c3ef72e","tags":["x_refsource_MISC"],"url":"https://github.com/earendil-works/pi/commit/a98e087e5d08ea2a536bf73dbb0aebb87c3ef72e"},{"name":"https://github.com/earendil-works/pi/commit/ea3465a8e371a12d0167a06b60f93878e3a3df44","tags":["x_refsource_MISC"],"url":"https://github.com/earendil-works/pi/commit/ea3465a8e371a12d0167a06b60f93878e3a3df44"},{"name":"https://github.com/earendil-works/pi/releases/tag/v0.78.1","tags":["x_refsource_MISC"],"url":"https://github.com/earendil-works/pi/releases/tag/v0.78.1"}],"affected":[{"vendor":"earendil-works","product":"pi","versions":[{"version":">= 0.74.0, < 0.78.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-23T19:25:04.051Z"},"descriptions":[{"lang":"en","value":"Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi versions with temporary npm or git extension package installs used predictable paths under the operating system temporary directory. On Linux-based multi-user systems, a local attacker who can write to the shared temporary directory could prepare the expected package location before another user runs pi with a temporary extension package source. Pi could then load attacker-controlled extension code in the victim user's process.  This vulnerability is fixed in 0.78.1."}],"source":{"advisory":"GHSA-jfgx-wxx8-mp94","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-24T13:37:52.524343Z","id":"CVE-2026-54328","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-24T13:38:04.242Z"}}]}}