{"cve":"CVE-2026-111943","nvd":{"published":"2026-10-21T01:17:20.797","modified":"2026-10-22T16:18:19.040","status":"Awaiting Analysis","description":"On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denylist was added in crypto/x509 to return an error when calling Verify with any of the known intermediate certificates that are no longer considered to be trustworthy.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://go.dev/cl/851047","https://go.dev/issue/82345","https://groups.google.com/g/golang-announce/c/66pojueaQek","https://pkg.go.dev/vuln/GO-2026-6809","http://www.openwall.com/lists/oss-security/2026/10/20/29"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:42:36.023364351+00:00"},"epss":{"cve":"CVE-2026-111943","score":0.00299,"percentile":0.22362,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GO-2026-6809","url":"https://osv.dev/vulnerability/GO-2026-6809","summary":"Distrust compromised intermediate certificates in crypto/x509","modified":"2026-10-21T00:55:56.763143468Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.26.10",">=1.27.0-0 <1.27.3"],"fixed":["1.26.10","1.27.3"]}]},{"id":"RUSTSEC-2026-0381","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0381","summary":"Bundled root certificates allow trust in distrusted emSign intermediates","modified":"2026-10-21T06:30:02.818201920Z","packages":[{"ecosystem":"crates.io","name":"webpki-roots","purl":"pkg:cargo/webpki-roots","ranges":[">=0.0.0-0 <0.26.11",">=0.26.12-0 <1.0.10"],"fixed":["0.26.11","1.0.10"]}]},{"id":"RUSTSEC-2026-0382","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0382","summary":"Certificate verification may accept distrusted intermediates","modified":"2026-10-21T00:55:56.763143468Z","packages":[{"ecosystem":"crates.io","name":"rustls-webpki","purl":"pkg:cargo/rustls-webpki","ranges":[">=0.0.0-0 <0.103.16",">=0.104.0-alpha.1 <0.104.0-alpha.8"],"fixed":["0.103.16","0.104.0-alpha.8"]}]},{"id":"RUSTSEC-2026-0383","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0383","summary":"Bundled root certificates allow trust in distrusted emSign intermediates","modified":"2026-10-21T06:30:02.691648061Z","packages":[{"ecosystem":"crates.io","name":"webpki-root-certs","purl":"pkg:cargo/webpki-root-certs","ranges":[">=0.0.0-0 <0.26.11",">=0.26.12-0 <1.0.10"],"fixed":["0.26.11","1.0.10"]}]}],"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."]}