Bug 2552981 (CVE-2026-110867)

Summary: CVE-2026-110867 renovate: Renovate before 44.60.1 allowedEnv Allowlist Bypass via Shared Preset
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: gbenhaim, niyer, twaugh
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Renovate. An attacker controlling an externally referenced configuration preset can bypass the environment variable allowlist. By defining restricted environment variables within a shared preset, the attacker can override critical execution settings such as PATH or LD_PRELOAD in child processes, potentially leading to arbitrary code execution on self-hosted systems.
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Description OSIDB Bzimport 2026-10-14 23:03:19 UTC
Renovate before 44.60.1 contains an allowlist bypass vulnerability that allows repositories to set restricted environment variables by placing env inside a shared preset. Attackers controlling an externally sourced preset can override variables like PATH, LD_PRELOAD, NODE_OPTIONS, or GIT_SSL_CAINFO in child processes on self-hosted instances.