CVE-2026-39832

When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.
Configurations

Configuration 1 (hide)

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

History

17 Jul 2026, 13:18

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:40945 -
  • () https://access.redhat.com/errata/RHSA-2026:40972 -
  • () https://access.redhat.com/errata/RHSA-2026:41019 -
  • () https://access.redhat.com/errata/RHSA-2026:41031 -
  • () https://access.redhat.com/errata/RHSA-2026:41036 -
  • () https://access.redhat.com/errata/RHSA-2026:41066 -

16 Jul 2026, 12:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:40118 -
  • () https://access.redhat.com/errata/RHSA-2026:40262 -

10 Jul 2026, 12:16

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:37387 -
  • () https://access.redhat.com/errata/RHSA-2026:37410 -

09 Jul 2026, 13:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:36651 -
  • () https://access.redhat.com/errata/RHSA-2026:36796 -
  • () https://access.redhat.com/errata/RHSA-2026:36797 -
  • () https://access.redhat.com/errata/RHSA-2026:37072 -
  • () https://access.redhat.com/errata/RHSA-2026:37123 -
  • () https://access.redhat.com/errata/RHSA-2026:37271 -

08 Jul 2026, 13:16

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:36199 -
  • () https://access.redhat.com/errata/RHSA-2026:36319 -
  • () https://access.redhat.com/errata/RHSA-2026:36625 -
  • () https://access.redhat.com/errata/RHSA-2026:36648 -

06 Jul 2026, 13:16

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:35833 -

30 Jun 2026, 03:19

Type Values Removed Values Added
References
  • () https://access.redhat.com/security/cve/CVE-2026-39832 -
  • () https://bugzilla.redhat.com/show_bug.cgi?id=2480685 -
  • () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39832.json -
CWE CWE-281

28 May 2026, 15:11

Type Values Removed Values Added
References () https://go.dev/cl/778642 - () https://go.dev/cl/778642 - Issue Tracking
References () https://go.dev/issue/79435 - () https://go.dev/issue/79435 - 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-2026-5006 - () https://pkg.go.dev/vuln/GO-2026-5006 - Vendor Advisory
CWE CWE-502
CPE cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*
First Time Golang crypto
Golang

22 May 2026, 19:17

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 9.1

22 May 2026, 04:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-22 04:16

Updated : 2026-07-20 12:19


NVD link : CVE-2026-39832

Mitre link : CVE-2026-39832

CVE.ORG link : CVE-2026-39832


JSON object : View

Products Affected

golang

  • crypto
CWE
CWE-502

Deserialization of Untrusted Data

CWE-281

Improper Preservation of Permissions