Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets

{
  "id": "0789d4b019ee3796cfea6ec1b5ec43e99f26788f704b1b8691f7eb7edf095406",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-110865",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Renovate before 44.60.1 HTTP Header Allowlist Bypass via Shared Presets",
    "summary": "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.",
    "evidence": "cve:CVE-2026-110865",
    "products": [
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        "name": {
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          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "renovate-ce",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "renovate-ee-server",
          "evidence": "/containers/cna/affected/2/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "renovate-ee-worker",
          "evidence": "/containers/cna/affected/3/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mend-renovate-ce helm chart",
          "evidence": "/containers/cna/affected/4/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mend-renovate-enterprise-edition helm chart",
          "evidence": "/containers/cna/affected/5/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-110865",
      "aliases": [
        "CVE-2026-110865"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 7.1,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH"
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
            "integrityImpact": "LOW",
            "userInteraction": "NONE",
            "attackComplexity": "HIGH",
            "availabilityImpact": "NONE",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "HIGH"
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      ],
      "affected": [
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          "vendor": "renovatebot",
          "product": "renovate",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "44.60.1",
              "versionType": "semver"
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          ],
          "packageURL": "pkg:npm/renovate",
          "defaultStatus": "unaffected"
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              "version": "0",
              "lessThan": "10.5.0",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T15:22:16.486Z",
      "provider": "cve",
      "references": [
        "https://github.com/renovatebot/renovate/security/advisories/GHSA-6j6f-fh7w-vvjr",
        "https://www.vulncheck.com/advisories/renovate-before-44.60.1-http-header-allowlist-bypass-via-shared-presets"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-110865",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T15:22:04.979008Z"
                  }
                }
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            ],
            "providerMetadata": {
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              "shortName": "CISA-ADP",
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        "cna": {
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          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-14T22:52:52.525Z"
        }
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    },
    "related_cves": [
      {
        "value": "CVE-2026-110865",
        "evidence": "/cveMetadata/cveId"
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    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 314021,
  "published_at": "2026-10-14T22:52:52.525+00:00"
}