{"cve":"CVE-2026-32281","nvd":{"published":"2026-04-08T02:16:03.350","modified":"2026-07-25T10:10:00.167","status":"Analyzed","description":"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. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-295"],"references":["https://go.dev/cl/758061","https://go.dev/issue/78281","https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU","https://pkg.go.dev/vuln/GO-2026-4946"],"products":["golang:go"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-32281","score":0.00355,"percentile":0.29254,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2026-4946","url":"https://osv.dev/vulnerability/GO-2026-4946","summary":"Inefficient policy validation in crypto/x509","modified":"2026-10-03T10:41:52.434115228Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.25.9",">=1.26.0-0 <1.26.2"],"fixed":["1.25.9","1.26.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}