{"cve":"CVE-2020-8664","nvd":{"published":"2020-03-04T21:15:11.497","modified":"2026-10-02T21:00:25.163","status":"Modified","description":"CNCF Envoy through 1.13.0 has incorrect Access Control when using SDS with Combined Validation Context. Using the same secret (e.g. trusted CA) across many resources together with the combined validation context could lead to the “static” part of the validation context to be not applied, even though it was visible in the active config dump.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-287"],"references":["https://access.redhat.com/errata/RHSA-2020:0734","https://github.com/envoyproxy/envoy/security/advisories/GHSA-3x9m-pgmg-xpx8","https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history","https://access.redhat.com/errata/RHSA-2020:0734","https://github.com/envoyproxy/envoy/security/advisories/GHSA-3x9m-pgmg-xpx8"],"products":["envoyproxy:envoy"],"source":"nvd","synced_at":"2026-10-19T21:02:53.949909883+00:00"},"epss":{"cve":"CVE-2020-8664","score":0.013,"percentile":0.70235,"date":"2026-10-25"},"kev":null,"osv":[],"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."]}