{"id":"CVE-2026-88882","revision":null,"records":[{"revision":"694635f176014a48af59782bf3316899","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-88882","aliases":[],"title":"Renovate before 44.11.2 Credential Exfiltration via Link Header","description":"Renovate is a dependency update automation tool. In versions before 44.11.2 (and Mend Renovate CE/EE images and charts before 15.4.0, and mend-renovate-enterprise-edition helm chart before 10.4.0), when listing new package versions from a NuGet registry Renovate follows pagination URLs supplied by the registry in the HTTP `Link` header without verifying that the target has the same origin as the configured registry. Registry credentials are attached to the request for the 'next' page, so a malicious or compromised NuGet registry can return a `Link` header pointing at an attacker-controlled server and cause Renovate to send the registry credentials to that server. Exploitation requires the remote registry to be malicious or compromised; such a registry would normally already have received the credentials on the initial request, so the issue primarily allows the credentials to be delivered to an additional, attacker-chosen host. The fix restricts pagination to the same origin; the previous behaviour can be re-enabled with the RENOVATE_X_NUGET_PAGINATION_ALLOW_CROSS_ORIGIN option.","state":0,"publishedAt":"2026-09-10T13:05:33.31+00:00","modifiedAt":"2026-09-29T22:10:38.475+00:00","affected":[{"ecosystem":"Vendor product","name":"renovate","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"renovatebot\",\n \"product\": \"renovate\",\n \"defaultStatus\": \"unaffected\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\",\n \"lessThan\": \"44.11.2\"\n },\n {\n \"version\": \"44.11.2\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"renovate-ce","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"mend\",\n \"product\": \"renovate-ce\",\n \"defaultStatus\": \"unaffected\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\",\n \"lessThan\": \"15.4.0\"\n },\n {\n \"version\": \"15.4.0\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"renovate-ee-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"mend\",\n \"product\": \"renovate-ee-server\",\n \"defaultStatus\": \"unaffected\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\",\n \"lessThan\": \"15.4.0\"\n },\n {\n \"version\": \"15.4.0\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"renovate-ee-worker","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"mend\",\n \"product\": \"renovate-ee-worker\",\n \"defaultStatus\": \"unaffected\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\",\n \"lessThan\": \"15.4.0\"\n },\n {\n \"version\": \"15.4.0\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"mend-renovate-ce","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"mend\",\n \"product\": \"mend-renovate-ce\",\n \"defaultStatus\": \"unaffected\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\",\n \"lessThan\": \"15.4.0\"\n },\n {\n \"version\": \"15.4.0\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"mend-renovate-enterprise-edition","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"mend\",\n \"product\": \"mend-renovate-enterprise-edition\",\n \"defaultStatus\": \"unaffected\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\",\n \"lessThan\": \"10.4.0\"\n },\n {\n \"version\": \"10.4.0\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":9.2,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6,"severity":"HIGH"}],"references":["https://github.com/renovatebot/renovate/security/advisories/GHSA-rh7w-ccch-gh49","https://www.vulncheck.com/advisories/renovate-before-44.11.2-credential-exfiltration-via-link-header"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-88882","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-88882","identifiers":["CVE-2026-88882"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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