{"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": "2026-08-18T15:11:10.331Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"product": "pyenv", "vendor": "pyenv", "versions": [{"status": "affected", "version": "< 2.8.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-68939", "lastModified": "2026-08-18T15:17:00.790", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.0, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-18T15:17:00.790", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/pyenv/pyenv/commit/95df7dbc7b34595b47c9b922de198547effda819"}, {"source": "security-advisories@github.com", "url": "https://github.com/pyenv/pyenv/releases/tag/v2.8.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/pyenv/pyenv/security/advisories/GHSA-g478-f579-9vp9"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}, {"lang": "en", "value": "CWE-88"}, {"lang": "en", "value": "CWE-155"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

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