Resource exhaustion in Go programming language - CVE-2026-32280

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU140599

Resource exhaustion in Go programming language - CVE-2026-32280

Published: July 31, 2026


Vulnerability identifier: #VU140599
CSH Severity: Medium
CVSS v4 BT: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2026-32280
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in the Certificate.Verify chain-building logic in crypto/x509 when processing a large number of intermediate certificates supplied through VerifyOptions.Intermediates. A remote attacker can provide a large number of intermediate certificates to cause a denial of service.

This affects both direct users of crypto/x509 and users of crypto/tls.


Affected software

Go programming language
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Development Tools Module
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
rhc-worker-playbook (Red Hat package)
rhc (Red Hat package)
yggdrasil (Red Hat package)
gvisor-tap-vsock (Red Hat package)
golang-github-openprinting-ipp-usb (Red Hat package)
butane (Red Hat package)
opentelemetry-collector (Red Hat package)
runc (Red Hat package)
containernetworking-plugins (Red Hat package)
skopeo (Red Hat package)
skopeo
skopeo-tests
skopeo-doc
delve
delve (Red Hat package)
golang (Red Hat package)
golang-race
go-toolset
golang
golang-bin
golang-docs
golang-misc
golang-tests
golang-src
go1.25-openssl
go1.25-openssl-race
go1.25-openssl-debuginfo
go1.25-openssl-doc
go1.25
go1.25-race
go1.25-doc
go1.26-openssl-race
go1.26-openssl
go1.26-openssl-doc
go1.26-doc
go1.26
go1.26-race
cri-tools (Red Hat package)
cri-o (Red Hat package)
buildah (Red Hat package)
conmon (Red Hat package)
git-lfs (Red Hat package)
git-lfs
git-lfs-doc
etcd (Red Hat package)
kata-containers (Red Hat package)
podman (Red Hat package)
ose-aws-ecr-image-credential-provider (Red Hat package)
ose-azure-acr-image-credential-provider (Red Hat package)
ose-gcp-gcr-image-credential-provider (Red Hat package)
openshift (Red Hat package)
openshift-clients (Red Hat package)
grafana-pcp (Red Hat package)
grafana-pcp
kernel (Red Hat package)
grafana (Red Hat package)
grafana-selinux
grafana
osbuild-composer (Red Hat package)
Multicluster Engine for Kubernetes
Red Hat OpenShift Container Platform
OpenShift Logging
Red Hat OpenStack

How to mitigate CVE-2026-32280

Install security update from vendor's website.

Go programming language - addressed in versions 1.25.9, 1.26.2
rhc-worker-playbook (Red Hat package) - update to 0.2.3-5.el10_0
rhc (Red Hat package) - addressed in versions 0.2.5-7.el8_10, 0.2.7-1.el9_6.4, 0.2.7-7.el9_8, 0.3.2-4.el10_0, 0.3.8-5.el10_2
yggdrasil (Red Hat package) - update to 0.4.9-5.el10_2
gvisor-tap-vsock (Red Hat package) - update to 0.8.5-2.el10_0.1
golang-github-openprinting-ipp-usb (Red Hat package) - update to 0.9.27-3.el10_0.4
butane (Red Hat package) - update to 0.24.0-5.rhaos4.19.el8
opentelemetry-collector (Red Hat package) - addressed in versions 0.144.0-2.el9_4, 0.144.0-2.el9_6, 0.144.0-2.el10_0
runc (Red Hat package) - addressed in versions 1.2.5-6.rhaos4.19.el9, 1.4.2-2.el9_8
containernetworking-plugins (Red Hat package) - addressed in versions 1.4.0-6.rhaos4.14.el8, 1.4.0-6.rhaos4.15.el8
skopeo (Red Hat package) - addressed in versions 1.11.3-7.rhaos4.14.el8, 1.11.3-7.rhaos4.14.el9, 1.11.3-8.rhaos4.15.el8, 1.11.3-9.rhaos4.15.el9, 1.14.6-1.el9_4, 1.18.1-6.rhaos4.19.el9, 1.22.2-2.el10_2, 1.22.2-6.el9_8
skopeo - update to 1.18.2-1
skopeo-tests - update to 1.18.2-1
skopeo-doc - update to 1.18.2-1
delve - update to 1.25.2-1.0.2
delve (Red Hat package) - addressed in versions 1.25.2-4.el10_0, 1.26.1-2.el10_2
golang (Red Hat package) - addressed in versions 1.25.9-1.el9_2, 1.25.9-1.el9_6, 1.25.9-1.el10_0, 1.25.9-3.el10_1
golang-race - update to 1.25.9-1.0.1
go-toolset - update to 1.25.9-1.0.1
golang - update to 1.25.9-1.0.1
golang-bin - update to 1.25.9-1.0.1
golang-docs - update to 1.25.9-1.0.1
golang-misc - update to 1.25.9-1.0.1
golang-tests - update to 1.25.9-1.0.1
golang-src - update to 1.25.9-1.0.1
go1.25-openssl - update to 1.25.9-150000.1.21.1
go1.25-openssl-race - update to 1.25.9-150000.1.21.1
go1.25-openssl-debuginfo - update to 1.25.9-150000.1.21.1
go1.25-openssl-doc - update to 1.25.9-150000.1.21.1
go1.25 - update to 1.25.9-150000.1.35.1
go1.25-race - update to 1.25.9-150000.1.35.1
go1.25-doc - update to 1.25.9-150000.1.35.1
go1.26-openssl-race - update to 1.26.2-150000.1.6.1
go1.26-openssl - update to 1.26.2-150000.1.6.1
go1.26-openssl-doc - update to 1.26.2-150000.1.6.1
go1.26-doc - update to 1.26.2-150000.1.9.1
go1.26 - update to 1.26.2-150000.1.9.1
go1.26-race - update to 1.26.2-150000.1.9.1
cri-tools (Red Hat package) - update to 1.32.0-5.el9
cri-o (Red Hat package) - update to 1.32.13-7.rhaos4.19.git5f9368a.el9
buildah (Red Hat package) - addressed in versions 1.33.12-5.rhaos4.19.el9, 1.33.15-1.el9_4.1, 1.43.1-2.el10_2
conmon (Red Hat package) - update to 2.1.12-12.rhaos4.19.el9
Multicluster Engine for Kubernetes - update to 2.6.12
git-lfs (Red Hat package) - addressed in versions 3.4.1-10.el8_10, 3.6.1-2.el9_6.4, 3.6.1-2.el10_0.4, 3.6.1-8.el9_7.1
git-lfs - addressed in versions 3.4.1-10.0.1, 3.7.1-4
git-lfs-doc - addressed in versions 3.4.1-10.0.1, 3.7.1-4
etcd (Red Hat package) - update to 3.4.26-9.5.el9ost
kata-containers (Red Hat package) - addressed in versions 3.25.0-6.rhaos4.18.el9, 3.25.0-7.rhaos4.19.el9
podman (Red Hat package) - addressed in versions 4.4.1-25.rhaos4.14.el8, 4.4.1-25.rhaos4.14.el9, 4.4.1-39.rhaos4.15.el8, 4.9.4-20.el9_4.3, 5.4.0-20.el9_6.3, 5.8.2-3.el9_8, 5.8.2-3.el10_2
ose-aws-ecr-image-credential-provider (Red Hat package) - addressed in versions 4.14.0-202606041348.p2.g9a7820e.assembly.stream.el8, 4.14.0-202606041348.p2.g9a7820e.assembly.stream.el9, 4.15.0-202606040938.p2.gfd77d92.assembly.stream.el8, 4.15.0-202606040938.p2.gfd77d92.assembly.stream.el9, 4.18.0-202606021914.p2.gc395190.assembly.stream.el8, 4.18.0-202606021914.p2.gc395190.assembly.stream.el9, 4.19.0-202605281656.p2.g425c1c5.assembly.stream.el9
Red Hat OpenShift Container Platform - addressed in versions 4.14.68, 4.15.66, 4.18.44, 4.19.33
ose-azure-acr-image-credential-provider (Red Hat package) - addressed in versions 4.15.0-202606040938.p2.g0d799a2.assembly.stream.el8, 4.15.0-202606040938.p2.g0d799a2.assembly.stream.el9, 4.18.0-202606021914.p2.g9c24d76.assembly.stream.el8, 4.18.0-202606021914.p2.g9c24d76.assembly.stream.el9, 4.19.0-202605281656.p2.g7109d6b.assembly.stream.el9
ose-gcp-gcr-image-credential-provider (Red Hat package) - addressed in versions 4.15.0-202606040938.p2.gfc50272.assembly.stream.el8, 4.15.0-202606040938.p2.gfc50272.assembly.stream.el9, 4.18.0-202606021914.p2.g6ea2356.assembly.stream.el8, 4.18.0-202606021914.p2.g6ea2356.assembly.stream.el9, 4.19.0-202605281656.p2.gd8d3aeb.assembly.stream.el9
openshift (Red Hat package) - update to 4.19.0-202605281656.p2.ga674efa.assembly.stream.el9
openshift-clients (Red Hat package) - addressed in versions 4.19.0-202605281656.p2.gb2a93a6.assembly.stream.el8, 4.19.0-202605281656.p2.gb2a93a6.assembly.stream.el9
grafana-pcp (Red Hat package) - addressed in versions 5.1.1-5.el9_2.1, 5.1.1-14.el8_10, 5.1.1-14.el9_6, 5.2.2-6.el10_0
grafana-pcp - update to 5.1.1-14
kernel (Red Hat package) - update to 5.14.0-570.118.1.el9_6
OpenShift Logging - update to 6.0.15
grafana (Red Hat package) - addressed in versions 9.0.9-12.el9_2, 9.2.10-27.el9_4, 9.2.10-30.el8_10, 10.2.6-24.el10_0
grafana-selinux - update to 9.2.10-30.0.1
grafana - update to 9.2.10-30.0.1
Red Hat OpenStack - update to 17.1
osbuild-composer (Red Hat package) - addressed in versions 101.5-1.el8_10, 134.1-7.el10_0

External References

Related Security Bulletins