{"api_version":"1","generated_at":"2026-09-30T21:46:56+00:00","cve":"CVE-2026-102938","urls":{"html":"https://cve.report/CVE-2026-102938","api":"https://cve.report/api/cve/CVE-2026-102938.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-102938","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102938"},"summary":{"title":"virtualenv writes prompt values into pyvenv.cfg without sanitizing line boundaries, allowing configuration injection","description":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.11, PyEnvCfg.write() writes prompt values verbatim to the line-oriented pyvenv.cfg format while PyEnvCfg._read_values() parses the file with str.splitlines() and accepts the last value for duplicate keys. An attacker who influences --prompt, VIRTUALENV_PROMPT, or configuration input can insert a recognized line boundary and additional keys, including home, causing consumers to use an attacker-selected base interpreter or corrupted environment metadata. The security impact requires prompt input from outside the operator's trust boundary; directly supplied prompt content primarily corrupts the operator's own environment. 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Prior to 21.7.11, PyEnvCfg.write() writes prompt values verbatim to the line-oriented pyvenv.cfg format while PyEnvCfg._read_values() parses the file with str.splitlines() and accepts the last value for duplicate keys. An attacker who influences --prompt, VIRTUALENV_PROMPT, or configuration input can insert a recognized line boundary and additional keys, including home, causing consumers to use an attacker-selected base interpreter or corrupted environment metadata. The security impact requires prompt input from outside the operator's trust boundary; directly supplied prompt content primarily corrupts the operator's own environment. This issue is fixed in version 21.7.11.","Type":"Description","Title":"virtualenv writes prompt values into pyvenv.cfg without sanitizi"}]}}}