CVE-2026-39835

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Source
https://cve.org/CVERecord?id=CVE-2026-39835
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39835.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-39835
Aliases
Downstream
AZL (13)
BELL (1)
CGA (4462)
CLEANSTART (251)
DEBIAN (1)
ECHO (1)
MINI (1086)
openSUSE (25)
RHSA (10)
RLSA (5)
ROOT (1)
SUSE (31)
UBUNTU (1)
Related
ALSA (4)
openSUSE (24)
SUSE (31)
Published
2026-05-22T02:31:26Z
Modified
2026-09-25T18:26:45Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh
Details

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

Database specific 
{
    "cna_assigner":  "Go",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39835.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "fixed":  "0.52.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/golang/crypto

Affected ranges

Type
GIT
Repo
https://github.com/golang/crypto
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a1c0d9929856c8aba2b31f079340f00578eda803
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.52.0"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

v0.*
v0.1.0
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.20.0
v0.21.0
v0.22.0
v0.23.0
v0.24.0
v0.25.0
v0.26.0
v0.27.0
v0.28.0
v0.29.0
v0.3.0
v0.30.0
v0.31.0
v0.32.0
v0.33.0
v0.34.0
v0.35.0
v0.36.0
v0.37.0
v0.38.0
v0.39.0
v0.4.0
v0.40.0
v0.41.0
v0.42.0
v0.43.0
v0.44.0
v0.45.0
v0.46.0
v0.47.0
v0.48.0
v0.49.0
v0.5.0
v0.50.0
v0.51.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39835.json"