{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68939","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-31T21:49:24.928Z","datePublished":"2026-08-18T15:11:10.331Z","dateUpdated":"2026-08-18T18:46:12.465Z"},"containers":{"cna":{"title":"Pyenv: Glob/wildcard metacharacters bypass is_version_safe(), causing silent version/interpreter substitution via unquoted expansion (CVE-2022-35861 residual)","problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-88","lang":"en","description":"CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-155","lang":"en","description":"CWE-155: Improper Neutralization of Wildcards or Matching Symbols","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/pyenv/pyenv/security/advisories/GHSA-g478-f579-9vp9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pyenv/pyenv/security/advisories/GHSA-g478-f579-9vp9"},{"name":"https://github.com/pyenv/pyenv/commit/95df7dbc7b34595b47c9b922de198547effda819","tags":["x_refsource_MISC"],"url":"https://github.com/pyenv/pyenv/commit/95df7dbc7b34595b47c9b922de198547effda819"},{"name":"https://github.com/pyenv/pyenv/releases/tag/v2.8.0","tags":["x_refsource_MISC"],"url":"https://github.com/pyenv/pyenv/releases/tag/v2.8.0"}],"affected":[{"vendor":"pyenv","product":"pyenv","versions":[{"version":"< 2.8.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-18T15:11:10.331Z"},"descriptions":[{"lang":"en","value":"Pyenv provides simple Python version management. Prior to 2.8.0, is_version_safe() in libexec/pyenv-version-file-read accepts shell glob metacharacters in .python-version values, and unquoted PYENV_VERSION expansion in libexec/pyenv-version-name, libexec/pyenv-which, libexec/pyenv-prefix, libexec/pyenv-local, libexec/pyenv-global, libexec/pyenv-version, and libexec/pyenv-versions pathname-expands the value against the current directory, allowing a matching attacker-controlled file to silently select a different installed interpreter or version. This issue is fixed in version 2.8.0."}],"source":{"advisory":"GHSA-g478-f579-9vp9","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/pyenv/pyenv/security/advisories/GHSA-g478-f579-9vp9","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T18:45:54.610692Z","id":"CVE-2026-68939","options":[{"Exploitation":"poc"},{"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":"2026-08-18T18:46:12.465Z"}}]}}