Arbitrary Code Injection Affecting nemo-gym package, versions <0.5.0_rc0_git20260729-r8


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.24% (16th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-NEMOGYM-21755855
  • published27 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-113718  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade Chainguard nemo-gym to version 0.5.0_rc0_git20260729-r8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nemo-gym package and not the nemo-gym package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1