medium 5.3

CVE-2024-45338 json

Non-linear parsing of case-insensitive content in golang.org/x/net/html

published 2024-12-18 22 mo ago modified 2026-09-10 1 mo ago also EUVD-2024-3617 , GHSA-w32m-9786-jp63 , GO-2024-3333

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

An attacker can craft an input to the Parse functions that would be processed non-linearly with respect to its length, resulting in extremely slow parsing. This could cause a denial of service.

Patch / fix

fixed in 3 distros 6 links 1

go golang.org/x/net/html 0.33.0
go golang.org/x/net 0.33.0
golang.org/x/net golang.org/x/net/html 0.33.0

debian ubuntu suse opensuse alpine azure linux

golang-golang-x-net Debian 14, Debian 13 1:0.27.0-2

debian advisories DEBIAN-CVE-2024-45338

adsys Ubuntu 20.04 LTS 0.9.2~20.04.2ubuntu0.1
adsys Ubuntu 22.04 LTS 0.14.3~22.04ubuntu0.1
adsys Ubuntu 24.04 LTS 0.14.3~24.04ubuntu0.1
golang-golang-x-net Ubuntu 22.04 LTS 1:0.0+git20211209.491a49a+dfsg-1ubuntu0.1
juju-core Ubuntu Pro 16.04 LTS 2.3.7-0ubuntu0.16.04.1+esm1
golang-golang-x-net Ubuntu Pro 22.04 LTS 1:0.0+git20211209.491a49a+dfsg-1ubuntu0.1~esm1
golang-golang-x-net Ubuntu Pro 24.04 LTS 1:0.21.0+dfsg-1ubuntu0.1~esm1
golang-golang-x-net-dev Ubuntu Pro 16.04 LTS 1:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2024-45338

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kubevirt SLE Module for Containers 15 SP6, openSUSE Leap 15.6 1.4.1-150600.5.24.1
kubevirt SLE Module for Containers 15 SP7 1.5.2-150700.3.5.2
helm Linux Micro 6.0 3.17.2-1.1
helm Linux Micro 6.1 3.17.2-slfo.1.1_1.1
apptainer SLE Module for HPC 15 SP6, openSUSE Leap 15.6 1.3.6-150600.4.9.1
helm SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +13 more 3.17.1-150000.1.41.1
govulncheck-vulndb SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 0.0.20250108T191942-150000.1.26.1

suse advisories SUSE-SU-2025:03278-1 SUSE-SU-2025:02581-1 SUSE-SU-2025:20196-1 SUSE-SU-2025:20278-1 SUSE-SU-2025:0980-1 SUSE-SU-2025:0602-1

kubeseal openSUSE Tumbleweed 0.41.1-1.1
kumactl openSUSE Tumbleweed 3.0.0-1.1
timoni openSUSE Tumbleweed 0.36.0-1.1
glab openSUSE Leap 16.0 1.114.0-bp160.1.1
gitea-tea openSUSE Leap 16.0 0.15.1-bp160.1.1
lux openSUSE Leap 16.0 0.24.1-bp160.1.1
lux openSUSE Tumbleweed 0.24.1-1.1
containerized-data-importer openSUSE Leap 16.0 1.64.0-160000.1.1

opensuse advisories openSUSE-SU-2026:12299-1 openSUSE-SU-2026:12300-1 openSUSE-SU-2026:12309-1 openSUSE-SU-2026:21662-1 openSUSE-SU-2026:21603-1 openSUSE-SU-2026:21367-1

yq-go Alpine 3.24, Alpine 3.23, Alpine 3.22 4.45.1-r0
rclone Alpine 3.24, Alpine 3.23, Alpine 3.22 1.69.0-r0

alpine advisories ALPINE-CVE-2024-45338

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

prometheus-adapter Azure Linux 3.0 0.12.0-2
packer CBL-Mariner 2.0, Azure Linux 3.0 1.9.5-7
docker-buildx Azure Linux 3.0 0.14.0-3
keda Azure Linux 3.0 2.14.1-2
node-problem-detector Azure Linux 3.0 0.8.15-3
helm Azure Linux 3.0 3.15.2-2
gh Azure Linux 3.0 2.62.0-5
telegraf Azure Linux 3.0 1.31.0-4

azure linux advisories AZL-54398 AZL-54401 AZL-54404 AZL-54407 AZL-54410 AZL-54413

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

go.dev/cl/637536 patch

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-45338 updated 2026-11-05 cvss 7.5

golang.org/x/net/html: Non-linear parsing of case-insensitive content in golang.org/x/net/html

Red Hat Custom Metric Autoscaler operator for Red Hat Openshift custom-metrics-autoscaler/custom-metrics-autoscaler-rhel8, custom-metrics-autoscaler/custom-metrics-autoscaler-adapter-rhel8, custom-metrics-autoscaler/custom-metrics-autoscaler-admission-webhooks-rhel8
affected: no fix planned “Will not fix”
Red Hat Fence Agents Remediation Operator workload-availability/fence-agents-remediation-rhel8-operator
affected: no fix available
Red Hat Migration Toolkit for Applications 7 mta/mta-hub-rhel9, mta/mta-analyzer-lsp-rhel9, mta/mta-analyzer-addon-rhel9, mta-discovery-addon-container, mta-java-external-provider-container, mta-dotnet-external-provider-container, +1 more Red Hat Multiarch Tuning Operator multiarch-tuning-rhel9-operator Red Hat Multicluster Engine for Kubernetes multicluster-engine/cluster-api-provider-azure-rhel9
affected: no fix planned “Will not fix”
Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-rhel8-operator Red Hat Node Maintenance Operator workload-availability/node-maintenance-rhel8-operator
affected: no fix available
Red Hat OpenShift Developer Tools and Services odo
affected: no fix planned “Will not fix”
Red Hat OpenShift Serverless openshift-serverless-1/kn-client-kn-rhel9, openshift-serverless-1/kn-client-cli-artifacts-rhel9, openshift-serverless-1/openshift-serverless-1-func-utils-rhel8
affected: no fix available
Red Hat 3scale API Management Platform 2 3scale-amp26/3scale-operator, 3scale-amp2/3scale-operator-bundle
affected: no fix planned “Will not fix”
Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/gatekeeper-rhel8, rhacm2/gatekeeper-rhel8-operator, multicluster-globalhub-agent-container, multicluster-globalhub-grafana-container, multicluster-globalhub-manager-container, multicluster-globalhub-operator-container, +3 more
affected: no fix available

show 20 more

Red Hat Ansible Automation Platform 1.2 openshift-clients
affected: no fix planned “Out of support scope”
Red Hat Ceph Storage 5 rhceph/rhceph-5-dashboard-rhel8
affected: no fix available “Fix deferred”
Red Hat Ceph Storage 6 rhceph/rhceph-6-dashboard-rhel9
affected: no fix planned “Will not fix”
Red Hat Ceph Storage 7 rhceph/grafana-rhel9 Red Hat Ceph Storage 9 rhceph-ci/alloy, rhceph/oauth2-proxy-rhel9, rhceph/oauth2-proxy-rhel10
affected: no fix available “Fix deferred”
Red Hat Connectivity Link 1 openshift4/dns-operator, edo/external-dns-operator-bundle
affected: no fix available, no fix planned “Will not fix”
Red Hat Developer Hub 1 rhdh-rhel9-operator Red Hat OpenShift AI (RHOAI) odh-operator-container, odh-kueue-controller-rhel8, rhoai/odh-training-operator-rhel9, odh-kuberay-operator-controller-rhel8, odh-data-science-pipelines-argo-argoexec-rhel8 Red Hat OpenShift Cluster Manager CLI ocm-cli-rhel9
affected: no fix available
Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift4/ose-installer, openshift4/ose-sdn-rhel8, openshift4/ose-kube-proxy, openshift4/ose-multus-cni, openshift4/cnf-tests-rhel8, +37 more
affected: no fix available, no fix planned “Will not fix”
Red Hat Openshift Data Foundation 4 kmm/kernel-module-management-must-gather-rhel9
affected: no fix available
Red Hat OpenShift Data Science (RHODS) odh-kueue-controller-container, rhods/odh-codeflare-operator-rhel8, rhods/odh-kuberay-operator-controller-rhel8, rhods/odh-modelmesh-serving-controller-rhel8, rhods/odh-data-science-pipelines-operator-controller-rhel8
affected: no fix available, no fix planned “Will not fix”
Red Hat OpenShift Dev Spaces devspaces/udi-rhel8 Red Hat OpenShift distributed tracing 3 opentelemetry-rhel8-operator, opentelemetry-target-allocator-rhel8 Red Hat OpenShift on AWS rosa Red Hat OpenShift Virtualization 4 kubevirt, hyperconverged-cluster-operator-test-rhel9-container Red Hat Runtimes Inventory Operator runtimes-inventory-rhel8-operator Red Hat Trusted Artifact Signer ec-rhel9

+1 more productsfewer

Red Hat Self Node Remediation Operator workload-availability/self-node-remediation-rhel8-operator

affected: no fix available
Red Hat Builds for Red Hat OpenShift 1.1.1 openshift-builds 1.1.1-1737550023, openshift-builds 1.1.1-1737550042, openshift-builds 1.1.1-1737550043, openshift-builds 1.1.1-1737550185, openshift-builds 1.1.1-1737550210, openshift-builds 1.1.1-1737590574, +3 more
fixed: vendor fix RHSA-2025:0715
Red Hat Builds for Red Hat OpenShift 1.2.2 openshift-builds 1.2.1-1737468833, openshift-builds 1.2.1-1737547771, openshift-builds 1.2.1-1737548078, openshift-builds 1.2.1-1737549219, openshift-builds 1.2.1-1737588912, openshift-builds 1.2.1-1737591360, +2 more
fixed: vendor fix RHSA-2025:0754
Red Hat cert-manager operator for Red Hat OpenShift 1.15 cert-manager
fixed: vendor fix RHSA-2025:0535
Red Hat Cluster Observability Operator 1.0.0 cluster-observability-operator 1.0.0-1739789914
fixed: vendor fix RHSA-2025:1609
Red Hat Cluster Observability Operator 1.5 cluster-observability-operator/logging-console-plugin-pf4-rhel9 1782839279
fixed: vendor fix RHSA-2026:34342
Red Hat CNV 4.12 for RHEL 8 container-native-virtualization/virt-api v4.12.20-9, container-native-virtualization/virtio-win v4.12.20-7, container-native-virtualization/kubemacpool v4.12.20-6, container-native-virtualization/virt-handler v4.12.20-9, container-native-virtualization/bridge-marker v4.12.20-6, container-native-virtualization/virt-launcher v4.12.20-9, +37 more
fixed: vendor fix RHSA-2025:16483
Red Hat CNV 4.14 for RHEL 9 container-native-virtualization/virt-api-rhel9 v4.14.11-9, container-native-virtualization/pr-helper-rhel9 v4.14.11-9, container-native-virtualization/virt-api-rhel9 v4.14.14-21, container-native-virtualization/pr-helper-rhel9 v4.14.14-21, container-native-virtualization/virtio-win-rhel9 v4.14.14-9, container-native-virtualization/kubemacpool-rhel9 v4.14.11-1, +82 more
fixed: vendor fix RHEA-2025:2193
Red Hat CNV 4.15 for RHEL 9 container-native-virtualization/vm-console-proxy-rhel9 v4.15.9-3, container-native-virtualization/kubevirt-ssp-operator-rhel9 v4.15.9-6, container-native-virtualization/kubevirt-template-validator-rhel9 v4.15.9-3, container-native-virtualization/kubevirt-tekton-tasks-create-datavolume-rhel9 v4.15.9-6, container-native-virtualization/kubevirt-tekton-tasks-disk-virt-customize-rhel9 v4.15.9-7
fixed: vendor fix RHSA-2025:2658
Red Hat CNV 4.16 for RHEL 9 container-native-virtualization/virt-api-rhel9 v4.16.14-2, container-native-virtualization/pr-helper-rhel9 v4.16.14-2, container-native-virtualization/aaq-server-rhel9 v4.16.14-3, container-native-virtualization/virtio-win-rhel9 v4.16.14-2, container-native-virtualization/wasp-agent-rhel9 v4.16.14-2, container-native-virtualization/kubemacpool-rhel9 v4.16.14-3, +53 more
fixed: vendor fix RHEA-2025:10586
Red Hat CNV 4.17 for RHEL 9 container-native-virtualization/virt-api-rhel9 v4.17.5-2, container-native-virtualization/pr-helper-rhel9 v4.17.5-2, container-native-virtualization/virt-api-rhel9 v4.17.22-3, container-native-virtualization/aaq-server-rhel9 v4.17.5-2, container-native-virtualization/pr-helper-rhel9 v4.17.22-3, container-native-virtualization/wasp-agent-rhel9 v4.17.5-1, +102 more
fixed: vendor fix RHEA-2025:12284

70 more fixed, 72 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 22 mo ago (2024-12-31)

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem	package	affected	fixed in
go	golang.org/x/net/html	<0.33.0	0.33.0
go	golang.org/x/net	<0.33.0	0.33.0

Affected products

golang.org/x/net golang.org/x/net/html

Classification

Weakness

CWE-1333 Inefficient Regular Expression Complexity
CWE-770 Allocation of Resources Without Limits or Throttling

References

go.dev /cl/637536
web, patch
go.dev /issue/70906
web, report
groups.google.com /g/golang-announce/c/wSCRmFnNmPA/m/Lvcd0mRMAwAJ
web
pkg.go.dev /vuln/GO-2024-3333
web
security.netapp.com /advisory/ntap-20250221-0001/
nvd.nist.gov /vuln/detail/CVE-2024-45338
advisory
github.com /golang/go/issues/70906
web
cs.opensource.google /go/x/net
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary