CVE-2026-55448CWE-78

mise: Local credential_command executes untrusted config

Medium · published June 26, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
4.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00158 · 4.6th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-06-26T16:46Z
EPSS history
Timeline
  • 26 JUN 16:46Z
    mise: Local credential_command executes untrusted config
    cvelistv5