Is CVE-2026-55448 actively exploited?

No active exploitation of CVE-2026-55448 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-55448 be exploited remotely?

No. CVE-2026-55448 requires local access to exploit.

What is the CVSS score of CVE-2026-55448?

CVE-2026-55448 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-55448

CWE-78Published: June 26, 2026· Updated: Jun 27, 2026

6.3

CVSS v3.1

EPSS:0.16%probability of exploitation in 30 daysPercentile:5.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-55448 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 6.3.