CVE-2026-76233: Improper Neutralization of Special Elements used in a Command ('Command Injection') in renovatebot renovate
Description
Renovate versions 39.53.0 up to but not including 40.33.0 have a command injection vulnerability in the gleam manager. The vulnerability arises because the depName parameter is not properly sanitized before being appended to gleam deps update commands. An attacker with repository write access can exploit this by crafting malicious gleam.toml files to execute arbitrary commands on the host running Renovate.
CVSS v4.0
Score 8.4high
Affected software
renovatebot
renovate
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76233 is a command injection vulnerability in renovatebot's Renovate tool affecting versions >=39.53.0 and <40.33.0. The flaw exists in the gleam manager component where the depName parameter is appended to gleam deps update commands without proper sanitization, allowing an attacker with repository write access to execute arbitrary commands on the machine running Renovate by crafting malicious gleam.toml files.
Potential Impact
An attacker with repository write access can execute arbitrary commands on the Renovate host machine, potentially leading to full system compromise or unauthorized actions. The vulnerability has a high CVSS 4.0 score of 8.4, indicating significant impact if exploited.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T11:36:02.574Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a85bc7eacd9273b492f4a08
Added to database: 08/19/2026, 14:23:58 UTC
Last enriched: 10/03/2026, 17:32:50 UTC
Last updated: 10/04/2026, 10:02:29 UTC
Views: 42
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