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OpenAdvisories
High · 7.1 CVE-2026-110865 EUVD-2026-101748GHSA-6f4x-rc8m-8j8g

Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets

Published Oct 14, 2026 · Updated Oct 26, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
renovatebot renovate < 44.60.1 44.60.1
mend renovate-ce < 15.5.0 15.5.0
mend renovate-ee-server < 15.5.0 15.5.0
mend renovate-ee-worker < 15.5.0 15.5.0
mend mend-renovate-ce helm chart < 15.5.0 15.5.0
mend mend-renovate-enterprise-edition helm chart < 10.5.0 10.5.0

References