VDB
RHSA-2026:51036
RHSA-2026:51036
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in golang.org/x/crypto/ssh. SSH servers configured to use CertChecker as a public key callback, without explicitly setting IsUserAuthority or IsHostAuthority, are vulnerable. A remote attacker can exploit this by presenting a specially crafted certificate, causing the server to panic and resulting in a Denial of Service (DoS).
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | kernel-debuginfo-0:5.14.0-687.36.1.el9_8.ppc64le as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-tools-libs-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | rv-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-uki-virt-addons-0:5.14.0-687.36.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-rt-64k-modules-partner-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-64k-debug-debuginfo-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-rt-64k-debug-core-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-zfcpdump-devel-matched-0:5.14.0-687.36.1.el9_8.s390x as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-debug-devel-matched-0:5.14.0-687.36.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | openshift-kube-controller-manager-0:4.22.0-202608010430.p2.g5f1e0e7.assembly.stream.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:4.22.0-202608010430.p2.g5f1e0e7.assembly.stream.el9 |
| Red Hat | kernel-debug-modules-core-0:5.14.0-687.36.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-modules-core-0:5.14.0-687.36.1.el9_8.ppc64le as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-rt-debug-devel-0:5.14.0-687.36.1.el9_8.x86_64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | rtla-0:5.14.0-687.36.1.el9_8.s390x as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-rt-modules-core-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-64k-debuginfo-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-abi-stablelists-0:5.14.0-687.36.1.el9_8.noarch as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-debuginfo-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-rt-debuginfo-0:5.14.0-687.36.1.el9_8.aarch64 as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
| Red Hat | kernel-zfcpdump-modules-internal-0:5.14.0-687.36.1.el9_8.s390x as a component of Red Hat OpenShift Container Platform 4.22 | 0:5.14.0-687.36.1.el9_8 |
…and 241 more
Timeline
- Aug 11, 2026 CVE Published
- Sep 30, 2026 CVE Updated
- Sep 30, 2026 Distribution Patch
- Sep 30, 2026 Distribution Patch
- Sep 30, 2026 Security Advisory
- Sep 30, 2026 Security Advisory
- Sep 30, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:51036 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2480678 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2480680 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_51036.json advisory
- https://access.redhat.com/security/cve/CVE-2026-39835 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-39835 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-39835 advisory
- https://go.dev/cl/781660 advisory
- https://go.dev/issue/79563 advisory
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI advisory
- https://pkg.go.dev/vuln/GO-2026-5015 advisory
- https://access.redhat.com/security/cve/CVE-2026-46597 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-46597 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-46597 advisory
- https://go.dev/cl/781620 advisory
- https://go.dev/issue/79561 advisory
- https://pkg.go.dev/vuln/GO-2026-5013 advisory