CVE-2026-42508

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-42508
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42508.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42508
Aliases
Downstream
AZL (4)
BELL (1)
CGA (2836)
CLEANSTART (287)
DEBIAN (1)
ECHO (1)
MINI (1098)
openSUSE (31)
RHSA (10)
RLSA (3)
ROOT (1)
SUSE (35)
UBUNTU (1)
Related
ALSA (2)
openSUSE (30)
SUSE (35)
Published
2026-05-22T02:31:27Z
Modified
2026-09-29T18:26:50Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts
Details

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

Database specific 
{
    "cna_assigner":  "Go",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42508.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-2026-42508.json"