{"cve":"CVE-2022-27191","nvd":{"published":"2022-03-18T07:15:06.750","modified":"2026-06-17T04:36:28.267","status":"Modified","description":"The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to crash a server in certain circumstances involving AddHostKey.","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":[],"references":["https://groups.google.com/g/golang-announce","https://groups.google.com/g/golang-announce/c/-cp44ypCT5s","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLUJZV3HBP56ADXU6QH2V7RNYUPMVBXQ/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZ3S7LB65N54HXXBCB67P4TTOHTNPP5O/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HHGBEGJ54DZZGTXFUQNS7ZIG3E624YAF/"],"products":["fedoraproject:extra_packages_for_enterprise_linux","fedoraproject:fedora","golang:ssh","redhat:advanced_cluster_management_for_kubernetes"],"source":"nvd","synced_at":"2026-10-19T21:29:06.454770966+00:00"},"epss":{"cve":"CVE-2022-27191","score":0.03931,"percentile":0.90374,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8c26-wmh5-6g9v","url":"https://osv.dev/vulnerability/GHSA-8c26-wmh5-6g9v","summary":"golang.org/x/crypto/ssh Denial of service via crafted Signer","modified":"2026-09-10T03:49:17.302487297Z","packages":[{"ecosystem":"Go","name":"golang.org/x/crypto","purl":"pkg:golang/golang.org/x/crypto","ranges":["<0.0.0-20220314234659-1baeb1ce4c0b"],"fixed":["0.0.0-20220314234659-1baeb1ce4c0b"]}]},{"id":"GO-2021-0356","url":"https://osv.dev/vulnerability/GO-2021-0356","summary":"Denial of service via crafted Signer in golang.org/x/crypto/ssh","modified":"2026-02-04T02:54:42.180263Z","packages":[{"ecosystem":"Go","name":"golang.org/x/crypto","purl":"pkg:golang/golang.org/x/crypto","ranges":["<0.0.0-20220314234659-1baeb1ce4c0b"],"fixed":["0.0.0-20220314234659-1baeb1ce4c0b"]}]}],"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."]}