CVE-2026-55448

Published: Jun 26, 2026Modified: Jun 27, 2026Deferred

6.3

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitability: 1.0 / Impact: 5.2

Source: security-advisories@github.com (Secondary)

Description

mise manages dev tools like node, python, cmake, and terraform. From 2026.3.15 until 2026.6.4, mise loads github.credential_command from local project config before any trust decision, then executes that value with sh -c when resolving a GitHub token. An attacker who can place a .mise.toml in a repository can execute arbitrary shell commands when the victim runs a GitHub-related mise command and no higher-priority GitHub token environment variable is set. This vulnerability is fixed in 2026.6.4.

Related CWEs

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

References (2)

https://github.com/jdx/mise/security/advisories/GHSA-29hf-rm4x-xxph

Source: security-advisories@github.com

https://github.com/jdx/mise/security/advisories/GHSA-29hf-rm4x-xxph

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.