{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88880","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-10T11:25:34.912Z","datePublished":"2026-09-10T13:05:31.574Z","dateUpdated":"2026-09-10T13:05:31.574Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-10T13:05:31.574Z"},"datePublic":"2026-08-27T00:00:00.000Z","title":"Renovate before 44.11.3 Credential Exfiltration via Link Header","descriptions":[{"lang":"en","value":"Renovate before 44.11.3 fails to validate Link header destinations when following GitLab server pagination, allowing malicious servers to redirect credential-bearing requests. Attackers controlling a compromised GitLab server can specify a Link header pointing to attacker-controlled infrastructure to exfiltrate authentication credentials."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"URL Redirection to Untrusted Site ('Open Redirect')","cweId":"CWE-601","type":"CWE"}]}],"affected":[{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","packageURL":"pkg:npm/renovate","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"44.11.3"},{"version":"44.11.3","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"44.11.3"},{"version":"44.11.3","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"44.11.3"},{"version":"44.11.3","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"44.11.3"},{"version":"44.11.3","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"15.4.0"},{"version":"15.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"10.4.0"},{"version":"10.4.0","status":"unaffected","versionType":"semver"}]},{"vendor":"renovatebot","product":"renovate","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"10.4.0"},{"version":"10.4.0","status":"unaffected","versionType":"semver"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.2,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/renovatebot/renovate/security/advisories/GHSA-9hmg-9h89-jhmx","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-9hmg-9h89-jhmx)"},{"name":"VulnCheck Advisory: Renovate before 44.11.3 Credential Exfiltration via Link Header","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/renovate-before-44.11.3-credential-exfiltration-via-link-header"}],"credits":[{"lang":"en","value":"jamietanna","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}