CVE-2026-76233
Description
A flaw was found in Renovate. This command injection vulnerability exists within the gleam manager, where the 'depName' parameter is not properly sanitized when appended to 'gleam deps update' commands. An attacker with repository write access can exploit this by crafting malicious 'gleam.toml' files, leading to the execution of arbitrary commands on the system running Renovate.
Statement
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.
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.
Understanding the Weakness (CWE)
Confidentiality,Integrity,Availability,Non-Repudiation
Technical Impact: Execute Unauthorized Code or Commands; DoS: Crash, Exit, or Restart; Read Files or Directories; Modify Files or Directories; Read Application Data; Modify Application Data; Hide Activities
Attackers could execute unauthorized operating system commands, which could then be used to disable the product, or read and modify data for which the attacker does not have permissions to access directly. Since the targeted application is directly executing the commands instead of the attacker, any malicious activities may appear to come from the application or the application's owner.
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