CVE-2026-110865

Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets

7.1 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: Low
Availability: None

Exploit likelihood

0.18%Unchanged since Oct 15, 2026

What each source reports

CVE List Score used 7.1

Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets

Record: CVE-2026-110865
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness: CWE-424
Updated: 2026-11-02

EUVDEUVD-2026-101748 7.1

Record: EUVD-2026-101748
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6f4x-rc8m-8j8g 7.1

Renovate before 44.60.1 contains an allowlist bypass vulnerability that allows repository users...

Record: GHSA-6f4x-rc8m-8j8g
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness: CWE-424
Updated: 2026-11-02

NVD 7.1

Record: CVE-2026-110865
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness: CWE-424
Updated: 2026-11-02

OSV 7.1

Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets

Record: CVE-2026-110865
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Weakness: CWE-424
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110865 is a high vulnerability (CVSS 7.1) in Renovatebot Renovate, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 8th percentile. No source names a fixed version.