HIGHCVSS v4 7.1Vulnerability

CVE-2026-113718

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.

Properties

Severity
HIGH
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Cvss severity
HIGH
Cvss score
7.1
Retrieved at
2026-10-20T21:15:35+00:00
Score
7.1
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-113718
Cvss vector
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
First seen by Signal
2026-10-20T21:15:35+00:00
Vector
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
Published at
2026-10-20T20:17:18.197
Last modified
2026-10-20T20:17:18.197

Related Entities (1)

Explore deeper with Ninja Signal's threat intelligence graph

CVE-2026-113718 (CVSS v4 7.1) — Ninja Signal Threat Intelligence | Ninja Signal