CVE-2026-113718
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
29/100
Published: 2026-10-20
Modified: 2026-10-27
First seen: 2026-10-29
Status: active
Attack Surface
No Auth
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
None
UI:
Active
S:
X
AT:
Present
VC:
High
VI:
High
VA:
High
Description
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.