Technology · Go
golang.org/x/crypto/ssh (Go) vulnerabilities
Updated . Rebuilt every hour.
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. Nothing was published in the last eight weeks.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 4
- Exploited in the wild
- 0
About golang.org/x/crypto/ssh (Go)
A Go package that implements an SSH client and server.
Latest golang.org/x/crypto/ssh (Go) vulnerabilities
- CVE-2026-56855: Go SSH deadlock vulnerability in channel handlinghighCVSS 7.5EPSS 0.5%
- CVE-2026-56854: Go SSH source-address permission validation bypass in authentication callbackshighCVSS 7.5EPSS 0.4%
- CVE-2026-46597: Go x/crypto/ssh denial of service in AES-GCM decoderhighCVSS 7.5EPSS 0.6%
- CVE-2026-46595: Go x/crypto authorization bypass in SSH server source-address validationcriticalCVSS 10EPSS 0.6%
- CVE-2026-39835: Go x/crypto/ssh denial of service in CertCheckermediumCVSS 5.3EPSS 0.7%
- CVE-2026-39834: Go x/crypto infinite loop in SSH channel writescriticalCVSS 9.1EPSS 0.6%
- CVE-2026-39831: Go x/crypto/ssh physical interaction bypass for FIDO/U2F keyscriticalCVSS 9.1EPSS 0.5%
- CVE-2026-39830: Go x/crypto/ssh resource leak via unsolicited global request responsescriticalCVSS 9.1EPSS 0.6%
- CVE-2026-39829: Go x/crypto/ssh denial of service in public key parsinghighCVSS 7.5EPSS 0.6%
- CVE-2026-39828: Go crypto/ssh bypass of certificate restrictions in NewServerConnmediumCVSS 6.3EPSS 0.5%
- CVE-2026-39827: Go x/crypto/ssh memory leak in channel rejectionmediumCVSS 6.5EPSS 0.3%
Most severe golang.org/x/crypto/ssh (Go) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-46595: Go x/crypto authorization bypass in SSH server source-address validationcriticalCVSS 10EPSS 0.6%
- CVE-2026-39834: Go x/crypto infinite loop in SSH channel writescriticalCVSS 9.1EPSS 0.6%
- CVE-2026-39830: Go x/crypto/ssh resource leak via unsolicited global request responsescriticalCVSS 9.1EPSS 0.6%
- CVE-2026-39831: Go x/crypto/ssh physical interaction bypass for FIDO/U2F keyscriticalCVSS 9.1EPSS 0.5%
- CVE-2026-46597: Go x/crypto/ssh denial of service in AES-GCM decoderhighCVSS 7.5EPSS 0.6%
- CVE-2026-39829: Go x/crypto/ssh denial of service in public key parsinghighCVSS 7.5EPSS 0.6%
- CVE-2026-56855: Go SSH deadlock vulnerability in channel handlinghighCVSS 7.5EPSS 0.5%
- CVE-2026-56854: Go SSH source-address permission validation bypass in authentication callbackshighCVSS 7.5EPSS 0.4%
- CVE-2026-39827: Go x/crypto/ssh memory leak in channel rejectionmediumCVSS 6.5EPSS 0.3%
- CVE-2026-39828: Go crypto/ssh bypass of certificate restrictions in NewServerConnmediumCVSS 6.3EPSS 0.5%
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 1 | 0 | |
| 31 Aug 2026 | 1 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many golang.org/x/crypto/ssh (Go) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh)<a href="https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh"><img src="https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh/badge.svg" alt="golang.org/x/crypto/ssh (Go) vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh.json, and this page as text at https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "golang.org/x/crypto/ssh (Go) vulnerabilities", https://junglewise.ai/threats/technologies/golang-org-x-crypto-ssh, 13 November 2026.