CVE-2026-46595

Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh

Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed other than public key, then the source-address validation would be skipped.

Affected

golang.org/x/crypto · golang.org/x/crypto/ssh

CVSS v3.1 CNA

7.1 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

CVSS v3.1 CNA

10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

EPSS

0.50% chance of exploitation in the next 30 days, 42nd percentile

Published

2026-05-22

Updated

2026-09-11

Proof-of-concept exploits (1)

• sdodson/CVE-2026-46595-proof0★ · 2026-09-25

Security advisories

• https://pkg.go.dev/vuln/GO-2026-5023
• advisories/GHSA-x527-x647-q7gg
• https://go.dev/cl/781642
• https://go.dev/issue/79570

References

• CVE Record
• NVD entry