{"id":"CVE-2026-32280","revision":"0d84bcf249a64307ba9757de9a99abd7","records":[{"revision":"0d84bcf249a64307ba9757de9a99abd7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-32280","aliases":[],"title":"Unexpected work during chain building in crypto/x509","description":"During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.","state":0,"publishedAt":"2026-04-08T01:06:58.595+00:00","modifiedAt":"2026-09-18T12:04:49.299+00:00","affected":[{"ecosystem":"https://pkg.go.dev","name":"crypto/x509","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Go standard library\",\n                    \"product\": \"crypto/x509\",\n                    \"collectionURL\": \"https://pkg.go.dev\",\n                    \"packageName\": \"crypto/x509\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.25.9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"1.26.0-0\",\n                            \"lessThan\": \"1.26.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"Certificate.buildChains\"\n                        },\n                        {\n                            \"name\": \"Certificate.Verify\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://go.dev/cl/758320","https://go.dev/issue/78282","https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU","https://pkg.go.dev/vuln/GO-2026-4947"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-32280","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-32280","identifiers":["CVE-2026-32280"]},"retained":false,"historicalAffected":[]}],"coverage":[]}