High severity · published Oct 14, 2026
CVE-2026-110865
Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets
7.1
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MH
mend-renovate-ce helm chart · mend
before 15.5.0 · source: vendor
MH
mend-renovate-enterprise-edition helm chart · mend
before 10.5.0 · source: vendor
RE
renovate · renovatebot
before 44.60.1 · source: vendor
RE
renovate-ce · mend
before 15.5.0 · source: vendor
RE
renovate-ee-server · mend
before 15.5.0 · source: vendor
RE
renovate-ee-worker · mend
before 15.5.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110865
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110865
github.com
https://github.com/renovatebot/renovate/security/advisories/GHSA-6j6f-fh7w-vvjr
www.vulncheck.com
https://www.vulncheck.com/advisories/renovate-before-44.60.1-http-header-allowlist-bypass-via-shared-presets
More from mend-renovate-ce helm chart
8.5
CVE-2026-110868
Renovate before 44.79.0 SSRF via HTTP Preset URLs and customDatasources
8.5
CVE-2026-110867
Renovate before 44.60.1 allowedEnv Allowlist Bypass via Shared Preset
4.7
CVE-2026-110866
Renovate before 44.61.3 minimumReleaseAge Bypass via PR Rebase Request