{"schema_version":1,"title":"golang.org/x/crypto/ssh (Go) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 11 vulnerabilities in golang.org/x/crypto/ssh (Go): 0 in the last 7 days and 2 in the last 90 days, 4 of them critical and 0 exploited in the wild. The most recent, CVE-2026-56855, was published on 2 September 2026.","url":"https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh","json_url":"https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":4,"all_time":11,"critical":4,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":2,"last_365_days":11},"latest":[{"cve":"CVE-2026-56855","cvss":7.5,"epss":0.005,"slug":"cve-2026-56855-go-ssh-deadlock-vulnerability-in-channel-handling","title":"Go SSH deadlock vulnerability in channel handling","severity":"high","exploited":false,"published_at":"2026-09-02T20:17:36.397+00:00","url":"https://junglewise.ai/threats/cve-2026-56855-go-ssh-deadlock-vulnerability-in-channel-handling"},{"cve":"CVE-2026-56854","cvss":7.5,"epss":0.0044,"slug":"cve-2026-56854-go-ssh-source-address-permission-validation-bypass-in","title":"Go SSH source-address permission validation bypass in authentication callbacks","severity":"high","exploited":false,"published_at":"2026-08-28T16:18:17.607+00:00","url":"https://junglewise.ai/threats/cve-2026-56854-go-ssh-source-address-permission-validation-bypass-in"},{"cve":"CVE-2026-46597","cvss":7.5,"epss":0.0062,"slug":"cve-2026-46597-go-x-crypto-ssh-denial-of-service-in-aes-gcm-decoder","title":"Go x/crypto/ssh denial of service in AES-GCM decoder","severity":"high","exploited":false,"published_at":"2026-05-22T04:16:26.003+00:00","url":"https://junglewise.ai/threats/cve-2026-46597-go-x-crypto-ssh-denial-of-service-in-aes-gcm-decoder"},{"cve":"CVE-2026-46595","cvss":10,"epss":0.006,"slug":"cve-2026-46595-go-x-crypto-authorization-bypass-in-ssh-server-source-address","title":"Go x/crypto authorization bypass in SSH server source-address validation","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:25.55+00:00","url":"https://junglewise.ai/threats/cve-2026-46595-go-x-crypto-authorization-bypass-in-ssh-server-source-address"},{"cve":"CVE-2026-39835","cvss":5.3,"epss":0.0066,"slug":"cve-2026-39835-go-x-crypto-ssh-denial-of-service-in-certchecker","title":"Go x/crypto/ssh denial of service in CertChecker","severity":"medium","exploited":false,"published_at":"2026-05-22T04:16:24.53+00:00","url":"https://junglewise.ai/threats/cve-2026-39835-go-x-crypto-ssh-denial-of-service-in-certchecker"},{"cve":"CVE-2026-39834","cvss":9.1,"epss":0.0064,"slug":"cve-2026-39834-go-x-crypto-infinite-loop-in-ssh-channel-writes","title":"Go x/crypto infinite loop in SSH channel writes","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:24.237+00:00","url":"https://junglewise.ai/threats/cve-2026-39834-go-x-crypto-infinite-loop-in-ssh-channel-writes"},{"cve":"CVE-2026-39831","cvss":9.1,"epss":0.0049,"slug":"cve-2026-39831-go-x-crypto-ssh-physical-interaction-bypass-for-fido-u2f-keys","title":"Go x/crypto/ssh physical interaction bypass for FIDO/U2F keys","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:22.553+00:00","url":"https://junglewise.ai/threats/cve-2026-39831-go-x-crypto-ssh-physical-interaction-bypass-for-fido-u2f-keys"},{"cve":"CVE-2026-39830","cvss":9.1,"epss":0.0062,"slug":"cve-2026-39830-go-x-crypto-ssh-resource-leak-via-unsolicited-global-request","title":"Go x/crypto/ssh resource leak via unsolicited global request responses","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:22.44+00:00","url":"https://junglewise.ai/threats/cve-2026-39830-go-x-crypto-ssh-resource-leak-via-unsolicited-global-request"},{"cve":"CVE-2026-39829","cvss":7.5,"epss":0.0062,"slug":"cve-2026-39829-go-x-crypto-ssh-denial-of-service-in-public-key-parsing","title":"Go x/crypto/ssh denial of service in public key parsing","severity":"high","exploited":false,"published_at":"2026-05-22T04:16:22.31+00:00","url":"https://junglewise.ai/threats/cve-2026-39829-go-x-crypto-ssh-denial-of-service-in-public-key-parsing"},{"cve":"CVE-2026-39828","cvss":6.3,"epss":0.0054,"slug":"cve-2026-39828-go-crypto-ssh-bypass-of-certificate-restrictions-in-newserverconn","title":"Go crypto/ssh bypass of certificate restrictions in NewServerConn","severity":"medium","exploited":false,"published_at":"2026-05-22T04:16:22.19+00:00","url":"https://junglewise.ai/threats/cve-2026-39828-go-crypto-ssh-bypass-of-certificate-restrictions-in-newserverconn"},{"cve":"CVE-2026-39827","cvss":6.5,"epss":0.0028,"slug":"cve-2026-39827-go-x-crypto-ssh-memory-leak-in-channel-rejection","title":"Go x/crypto/ssh memory leak in channel rejection","severity":"medium","exploited":false,"published_at":"2026-05-22T04:16:21.497+00:00","url":"https://junglewise.ai/threats/cve-2026-39827-go-x-crypto-ssh-memory-leak-in-channel-rejection"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"github.com/mattermost/mattermost-server (Go)","slug":"github-com-mattermost-mattermost-server","vulnerabilities":274,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server"},{"name":"github.com/mattermost/mattermost-server/v6 (Go)","slug":"github-com-mattermost-mattermost-server-v6","vulnerabilities":188,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6"},{"name":"github.com/mattermost/mattermost-server/v5 (Go)","slug":"github-com-mattermost-mattermost-server-v5","vulnerabilities":186,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5"},{"name":"github.com/mattermost/mattermost/server/v8 (Go)","slug":"github-com-mattermost-mattermost-server-v8","vulnerabilities":182,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8"},{"name":"stdlib (Go)","slug":"go-stdlib","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/go-stdlib"},{"name":"github.com/siyuan-note/siyuan/kernel (Go)","slug":"github-com-siyuan-note-siyuan-kernel","vulnerabilities":158,"url":"https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel"},{"name":"code.gitea.io/gitea (Go)","slug":"code-gitea-io-gitea","vulnerabilities":128,"url":"https://junglewise.ai/threats/technologies/code-gitea-io-gitea"},{"name":"gogs.io/gogs (Go)","slug":"gogs-io-gogs","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/gogs-io-gogs"},{"name":"github.com/traefik/traefik (Go)","slug":"github-com-traefik-traefik","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik"},{"name":"github.com/usememos/memos (Go)","slug":"github-com-usememos-memos","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-usememos-memos"},{"name":"github.com/traefik/traefik/v2 (Go)","slug":"github-com-traefik-traefik-v2","vulnerabilities":73,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2"},{"name":"github.com/traefik/traefik/v3 (Go)","slug":"github-com-traefik-traefik-v3","vulnerabilities":68,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v3"}],"technology":{"hub":true,"name":"golang.org/x/crypto/ssh (Go)","slug":"golang-org-x-crypto-ssh","vendor":{"name":"Go","slug":"go","url":"https://junglewise.ai/threats/vendors/go"},"aliases":[],"category":"library","homepage":"https://pkg.go.dev/golang.org/x/crypto/ssh","repo_url":"https://pkg.go.dev/golang.org/x/crypto/ssh","description":"A Go package that implements an SSH client and server.","url":"https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh"},"most_severe":[{"cve":"CVE-2026-46595","cvss":10,"epss":0.006,"slug":"cve-2026-46595-go-x-crypto-authorization-bypass-in-ssh-server-source-address","title":"Go x/crypto authorization bypass in SSH server source-address validation","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:25.55+00:00","url":"https://junglewise.ai/threats/cve-2026-46595-go-x-crypto-authorization-bypass-in-ssh-server-source-address"},{"cve":"CVE-2026-39834","cvss":9.1,"epss":0.0064,"slug":"cve-2026-39834-go-x-crypto-infinite-loop-in-ssh-channel-writes","title":"Go x/crypto infinite loop in SSH channel writes","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:24.237+00:00","url":"https://junglewise.ai/threats/cve-2026-39834-go-x-crypto-infinite-loop-in-ssh-channel-writes"},{"cve":"CVE-2026-39830","cvss":9.1,"epss":0.0062,"slug":"cve-2026-39830-go-x-crypto-ssh-resource-leak-via-unsolicited-global-request","title":"Go x/crypto/ssh resource leak via unsolicited global request responses","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:22.44+00:00","url":"https://junglewise.ai/threats/cve-2026-39830-go-x-crypto-ssh-resource-leak-via-unsolicited-global-request"},{"cve":"CVE-2026-39831","cvss":9.1,"epss":0.0049,"slug":"cve-2026-39831-go-x-crypto-ssh-physical-interaction-bypass-for-fido-u2f-keys","title":"Go x/crypto/ssh physical interaction bypass for FIDO/U2F keys","severity":"critical","exploited":false,"published_at":"2026-05-22T04:16:22.553+00:00","url":"https://junglewise.ai/threats/cve-2026-39831-go-x-crypto-ssh-physical-interaction-bypass-for-fido-u2f-keys"},{"cve":"CVE-2026-46597","cvss":7.5,"epss":0.0062,"slug":"cve-2026-46597-go-x-crypto-ssh-denial-of-service-in-aes-gcm-decoder","title":"Go x/crypto/ssh denial of service in AES-GCM decoder","severity":"high","exploited":false,"published_at":"2026-05-22T04:16:26.003+00:00","url":"https://junglewise.ai/threats/cve-2026-46597-go-x-crypto-ssh-denial-of-service-in-aes-gcm-decoder"},{"cve":"CVE-2026-39829","cvss":7.5,"epss":0.0062,"slug":"cve-2026-39829-go-x-crypto-ssh-denial-of-service-in-public-key-parsing","title":"Go x/crypto/ssh denial of service in public key parsing","severity":"high","exploited":false,"published_at":"2026-05-22T04:16:22.31+00:00","url":"https://junglewise.ai/threats/cve-2026-39829-go-x-crypto-ssh-denial-of-service-in-public-key-parsing"},{"cve":"CVE-2026-56855","cvss":7.5,"epss":0.005,"slug":"cve-2026-56855-go-ssh-deadlock-vulnerability-in-channel-handling","title":"Go SSH deadlock vulnerability in channel handling","severity":"high","exploited":false,"published_at":"2026-09-02T20:17:36.397+00:00","url":"https://junglewise.ai/threats/cve-2026-56855-go-ssh-deadlock-vulnerability-in-channel-handling"},{"cve":"CVE-2026-56854","cvss":7.5,"epss":0.0044,"slug":"cve-2026-56854-go-ssh-source-address-permission-validation-bypass-in","title":"Go SSH source-address permission validation bypass in authentication callbacks","severity":"high","exploited":false,"published_at":"2026-08-28T16:18:17.607+00:00","url":"https://junglewise.ai/threats/cve-2026-56854-go-ssh-source-address-permission-validation-bypass-in"},{"cve":"CVE-2026-39827","cvss":6.5,"epss":0.0028,"slug":"cve-2026-39827-go-x-crypto-ssh-memory-leak-in-channel-rejection","title":"Go x/crypto/ssh memory leak in channel rejection","severity":"medium","exploited":false,"published_at":"2026-05-22T04:16:21.497+00:00","url":"https://junglewise.ai/threats/cve-2026-39827-go-x-crypto-ssh-memory-leak-in-channel-rejection"},{"cve":"CVE-2026-39828","cvss":6.3,"epss":0.0054,"slug":"cve-2026-39828-go-crypto-ssh-bypass-of-certificate-restrictions-in-newserverconn","title":"Go crypto/ssh bypass of certificate restrictions in NewServerConn","severity":"medium","exploited":false,"published_at":"2026-05-22T04:16:22.19+00:00","url":"https://junglewise.ai/threats/cve-2026-39828-go-crypto-ssh-bypass-of-certificate-restrictions-in-newserverconn"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}