Bug 2552980 (CVE-2026-110865)

Summary: CVE-2026-110865 renovate: Renovate: HTTP header injection via shared configuration presets
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
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. This vulnerability allows an authenticated repository user to bypass HTTP (Hypertext Transfer Protocol) header restrictions by specifying custom headers within shared configuration presets. By injecting arbitrary headers into outbound requests sent by Renovate, an attacker could potentially expose sensitive information or manipulate communications with remote services.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-14 23:03:15 UTC
Renovate before 44.60.1 contains an allowlist bypass vulnerability that allows repository users to evade the allowedHeaders restriction by placing hostRules headers inside shared presets. Attackers can supply internal or externally sourced presets with unvalidated hostRules[].headers to inject custom HTTP headers into requests Renovate sends to other hosts.