{"schema_version":"1.7.5","id":"GO-2026-4946","published":"2026-04-07T22:53:49Z","modified":"2026-09-10T10:41:34.705713781Z","aliases":["BIT-golang-2026-32281","CVE-2026-32281"],"related":["RHSA-2026:10217","RHSA-2026:10219","RHSA-2026:16021","RHSA-2026:16024","RHSA-2026:16101","RHSA-2026:17287","RHSA-2026:18027","RHSA-2026:18032","RHSA-2026:19135","RHSA-2026:19353","RHSA-2026:19450","RHSA-2026:19719","RHSA-2026:19720","RHSA-2026:19721","RHSA-2026:19839","RHSA-2026:20556","RHSA-2026:20569","RHSA-2026:20570","RHSA-2026:20571","RHSA-2026:20607","RHSA-2026:20608","RHSA-2026:20609","RHSA-2026:22141","RHSA-2026:22309","RHSA-2026:22713","RHSA-2026:23102","RHSA-2026:23103","RHSA-2026:24337","RHSA-2026:24470","RHSA-2026:24716","RHSA-2026:25248","RHSA-2026:25250","RHSA-2026:25251","RHSA-2026:25252","RHSA-2026:26054","RHSA-2026:26447","RHSA-2026:27076","RHSA-2026:27711","RHSA-2026:27740","RHSA-2026:28074","RHSA-2026:29035","RHSA-2026:29195","RHSA-2026:29455","RHSA-2026:29702","RHSA-2026:29703","RHSA-2026:33722","RHSA-2026:34192","RHSA-2026:34196","RHSA-2026:34197","RHSA-2026:34365","RHSA-2026:36796","RHSA-2026:39810","RHSA-2026:41019","RHSA-2026:42078","RHSA-2026:42079","RHSA-2026:47712","RHSA-2026:47714","RHSA-2026:47716","RHSA-2026:47719","RHSA-2026:47721","RHSA-2026:47722","RHSA-2026:47910","RHSA-2026:48036","RHSA-2026:49509","RHSA-2026:49526","RHSA-2026:49600","RHSA-2026:49838","RHSA-2026:49944","RHSA-2026:51288","RHSA-2026:54757","RHSA-2026:61906","RHSA-2026:61907","RHSA-2026:65534","RHSA-2026:65886","RHSA-2026:7291","RHSA-2026:7385"],"summary":"Inefficient policy validation in crypto/x509","details":"Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service.\n\nThis only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.","affected":[{"package":{"name":"stdlib","ecosystem":"Go","purl":"pkg:golang/stdlib"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.25.9"},{"introduced":"1.26.0-0"},{"fixed":"1.26.2"}]}],"ecosystem_specific":{"imports":[{"path":"crypto/x509","symbols":["Certificate.Verify","policiesValid"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4946.json"}}],"references":[{"type":"FIX","url":"https://go.dev/cl/758061"},{"type":"REPORT","url":"https://go.dev/issue/78281"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"}],"database_specific":{"review_status":"REVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-4946"},"credits":[{"name":"Jakub Ciolek - https://ciolek.dev"}]}