virtualenv: Xonsh activation literals depend on the script decoding codec

影響: pip:virtualenv < 21.14.9 → 21.14.9

Caller-supplied prompt text can become executable syntax in the xonsh activation script. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment. Affected area Xonsh reads a UTF-8 activation script using a legacy multibyte encoding such as GBK. Printable non-ASCII bytes can change how the reader recognizes an adjacent quote. The report concerns POSIX activation. It does not establish exposure through unrelated activators. Attacker-control…

Read on GitHub Advisory Database

On 10/24/2026, 07:24 AM, GitHub Advisory Database published "virtualenv: Xonsh activation literals depend on the script decoding codec" (type: Advisory). Severity is "High" (high). Related technologies: Python. CVE: CVE-2026-113718.