{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-115586",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-22T22:53:15.239Z",
        "datePublished": "2026-10-23T19:34:46.391Z",
        "dateUpdated": "2026-10-23T19:34:46.391Z"
    },
    "containers": {
        "cna": {
            "title": "virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)",
            "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"
                        }
                    ]
                }
            ],
            "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-cx6f-vjhg-g3cc",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/pypa/virtualenv/security/advisories/GHSA-cx6f-vjhg-g3cc"
                },
                {
                    "name": "https://github.com/pypa/virtualenv/pull/3466",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pypa/virtualenv/pull/3466"
                },
                {
                    "name": "https://github.com/pypa/virtualenv/commit/3598e201f6f044e389136b2347a8a919ac03c5f4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pypa/virtualenv/commit/3598e201f6f044e389136b2347a8a919ac03c5f4"
                },
                {
                    "name": "https://github.com/pypa/virtualenv/releases/tag/21.14.13",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pypa/virtualenv/releases/tag/21.14.13"
                }
            ],
            "affected": [
                {
                    "vendor": "pypa",
                    "product": "virtualenv",
                    "versions": [
                        {
                            "version": ">= 21.14.9, < 21.14.13",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-23T19:34:46.391Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar signs or backticks when both promptvars and POSIX mode are disabled during activation. Re-enabling promptvars, running set -o posix, or starting an interactive child bash that inherits the exported PS1 can then expand command substitution in the stored VIRTUAL_ENV_PROMPT value and execute commands as the user who activates the environment. This issue is fixed in version 21.14.13."
                }
            ],
            "source": {
                "advisory": "GHSA-cx6f-vjhg-g3cc",
                "discovery": "UNKNOWN"
            }
        }
    }
}