CVE-2026-39835

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-39835
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.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://go.dev/cl/781660 Issue Tracking
https://go.dev/issue/79563 Issue Tracking
https://groups.google.com/g/golang-announce/c/a082jnz-LvI Mailing List
https://pkg.go.dev/vuln/GO-2026-5015 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*
History

28 May 2026, 14:56

Type Values Removed Values Added
First Time Golang crypto
Golang
CWE CWE-295
CPE cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*
References () https://go.dev/cl/781660 - () https://go.dev/cl/781660 - Issue Tracking
References () https://go.dev/issue/79563 - () https://go.dev/issue/79563 - Issue Tracking
References () https://groups.google.com/g/golang-announce/c/a082jnz-LvI - () https://groups.google.com/g/golang-announce/c/a082jnz-LvI - Mailing List
References () https://pkg.go.dev/vuln/GO-2026-5015 - () https://pkg.go.dev/vuln/GO-2026-5015 - Vendor Advisory

22 May 2026, 18:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.3

22 May 2026, 04:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-22 04:16

Updated : 2026-05-28 14:56

NVD link : CVE-2026-39835

Mitre link : CVE-2026-39835

CVE.ORG link : CVE-2026-39835

JSON object : View

Products Affected

golang

  • crypto
CWE
CWE-295

Improper Certificate Validation