High7.8Red Hat Linux

High [CVE-2026-76233] Arbitrary command execution via gleam manager command injection

This high-severity Red Hat Linux advisory covers CVE-2026-76233.

CVE-2026-76233 Published Aug 19, 2026Updated by vendor Aug 19, 2026

CVE-2026-76233

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Renovate versions from 39.53.0 before 40.33.0 contain a command injection vulnerability in the gleam manager where the depName parameter is appended to gleam deps update commands without proper sanitization. Attackers with repository write access can craft malicious gleam.toml files to execute arbitrary commands on the machine running Renovate.

A flaw was found in Renovate. This Important vulnerability in Renovate allows for arbitrary command execution on the system running Renovate.

Exploitation requires an attacker to possess repository write access and introduce a specially crafted `gleam.toml` file. While requiring local access and specific repository control, successful exploitation can lead to high impact on system confidentiality, integrity, and availability.

The version of Renovate shipped by Red Hat is beyond the upstream fix (40.33.0), so Red Hat's products are not affected. Red Hat severity: Important — CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-78.

Affected versions

< 39.53.0
< 40.33.0

Official advisory · high-confidence parse· fetched 56 minutes ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 56 minutes ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Official advisory · high-confidence parse· fetched 56 minutes ago·verify at source

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