{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6357","assignerOrgId":"28c92f92-d60d-412d-b760-e73465c3df22","state":"PUBLISHED","assignerShortName":"PSF","dateReserved":"2026-04-15T13:55:02.734Z","datePublished":"2026-04-27T14:19:47.657Z","dateUpdated":"2026-04-27T22:17:49.582Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://pypi.org/project/pip","defaultStatus":"unaffected","packageName":"pip","product":"pip","repo":"https://github.com/pypa/pip","vendor":"Pip maintainers","versions":[{"lessThan":"26.1","status":"affected","version":"0","versionType":"python"}]}],"credits":[{"lang":"en","type":"reporter","value":"Damian Shaw"},{"lang":"en","type":"remediation developer","value":"Damian Shaw"},{"lang":"en","type":"remediation reviewer","value":"Richard Si"},{"lang":"en","type":"coordinator","value":"Seth Larson"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation."}],"value":"pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"providerMetadata":{"orgId":"28c92f92-d60d-412d-b760-e73465c3df22","shortName":"PSF","dateUpdated":"2026-04-27T14:19:47.657Z"},"references":[{"tags":["patch"],"url":"https://github.com/pypa/pip/pull/13923"},{"tags":["vendor-advisory"],"url":"https://ichard26.github.io/blog/2026/04/whats-new-in-pip-26.1/#security-fixes"}],"source":{"discovery":"UNKNOWN"},"title":"pip self-update functionality can import newly installed modules after wheel installation","x_generator":{"engine":"Vulnogram 0.6.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-829","lang":"en","description":"CWE-829 Inclusion of Functionality from Untrusted Control Sphere"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-27T16:08:15.074450Z","id":"CVE-2026-6357","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-27T16:08:47.582Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/04/27/7"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-04-27T22:17:49.582Z"}}]}}