{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-113718", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-20T16:03:14.863Z", "datePublished": "2026-10-20T19:39:52.633Z", "dateUpdated": "2026-10-20T19:39:52.633Z"}, "containers": {"cna": {"title": "virtualenv: Xonsh activation literals depend on the script decoding codec", "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/pypa/virtualenv/security/advisories/GHSA-394h-qwmc-48pf", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pypa/virtualenv/security/advisories/GHSA-394h-qwmc-48pf"}, {"name": "https://github.com/pypa/virtualenv/pull/3432", "tags": ["x_refsource_MISC"], "url": "https://github.com/pypa/virtualenv/pull/3432"}, {"name": "https://github.com/pypa/virtualenv/commit/e5fc2e6e189a877ff559af288919e3525d13e5e0", "tags": ["x_refsource_MISC"], "url": "https://github.com/pypa/virtualenv/commit/e5fc2e6e189a877ff559af288919e3525d13e5e0"}, {"name": "https://github.com/pypa/virtualenv/releases/tag/21.14.9", "tags": ["x_refsource_MISC"], "url": "https://github.com/pypa/virtualenv/releases/tag/21.14.9"}], "affected": [{"vendor": "pypa", "product": "virtualenv", "versions": [{"version": "< 21.14.9", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-20T19:39:52.633Z"}, "descriptions": [{"lang": "en", "value": "virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, POSIX xonsh activation quote() uses repr() to write printable non-ASCII prompt or destination data into UTF-8 activate.xsh, while xonsh can read that script using $XONSH_ENCODING. Under a legacy multibyte codec such as GBK or Big5, a UTF-8 trail byte can consume the backslash before an adjacent quote, allowing the literal to close and attacker-influenced statements to execute when the user sources the generated script. This issue is fixed in version 21.14.9."}], "source": {"advisory": "GHSA-394h-qwmc-48pf", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "virtualenv", "vendor": "pypa", "versions": [{"status": "affected", "version": "< 21.14.9"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, POSIX xonsh activation quote() uses repr() to write printable non-ASCII prompt or destination data into UTF-8 activate.xsh, while xonsh can read that script using $XONSH_ENCODING. Under a legacy multibyte codec such as GBK or Big5, a UTF-8 trail byte can consume the backslash before an adjacent quote, allowing the literal to close and attacker-influenced statements to execute when the user sources the generated script. This issue is fixed in version 21.14.9."}], "id": "CVE-2026-113718", "lastModified": "2026-10-20T20:17:18.197", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/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": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-20T20:17:18.197", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/pypa/virtualenv/commit/e5fc2e6e189a877ff559af288919e3525d13e5e0"}, {"source": "security-advisories@github.com", "url": "https://github.com/pypa/virtualenv/pull/3432"}, {"source": "security-advisories@github.com", "url": "https://github.com/pypa/virtualenv/releases/tag/21.14.9"}, {"source": "security-advisories@github.com", "url": "https://github.com/pypa/virtualenv/security/advisories/GHSA-394h-qwmc-48pf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,21.14.9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "virtualenv", "source": "cna", "vendor": "pypa"}, "product": "virtualenv", "vendor": "pypa"}], "created": "2026-10-20T20:45:14.112298+00:00", "updated": "2026-10-20T23:00:23.765390+00:00", "vendors": ["pypa", "pypa$PRODUCT$virtualenv"]}