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Fencer Vulns
high 7.5

CVE-2026-29074 json

SVGO: DoS through entity expansion in DOCTYPE (Billion Laughs)

published 2026-03-04 8 mo ago modified 2026-09-10 1 mo ago also GHSA-xpqw-6gx7-v673 , EUVD-2026-10022

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 2.1.0 to before version 2.8.1, from version 3.0.0 to before version 3.3.3, and before version 4.0.1, SVGO accepts XML with custom entities, without guards against entity expansion or recursion. This can result in a small XML file (811 bytes) stalling the application and even crashing the Node.js process with JavaScript heap out of memory. This issue has been patched in versions 2.8.1, 3.3.3, and 4.0.1.

Patch / fix

  • npm svgo 2.8.1, 3.3.3, 4.0.1
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:2.5.20260422-2.el8ap
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:2.5.20260422-2.el9ap
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9 0:2.6.7-1.el9ap
  • Red Hat Red Hat Advanced Cluster Security 4.8 1775594119
  • Red Hat Red Hat Ansible Automation Platform 2.5 1777403872
  • Red Hat Red Hat Ansible Automation Platform 2.6 1774243862, 1777387242
  • Red Hat Red Hat Developer Hub 1.8 1776784286
  • Red Hat Red Hat Developer Hub 1.9 1777903262
  • Red Hat Red Hat OpenShift AI 2.16 1774282136
  • Red Hat Red Hat OpenShift AI 2.25 1780467029, 1780467147
  • Red Hat Red Hat OpenShift AI 3.3 1778473763, 1778666987, 1779189627
  • Red Hat Red Hat OpenShift Dev Spaces 3.28 1779814592
  • Red Hat Red Hat OpenShift Service Mesh 2.6 1776191302
  • Red Hat Red Hat OpenShift Service Mesh 3.0 1776151124, 1776151272
  • Red Hat Red Hat OpenShift Service Mesh 3.1 1776151106, 1776151270
  • Red Hat Red Hat OpenShift Service Mesh 3.2 1776149682, 1776155669
  • Red Hat Red Hat OpenShift Service Mesh 3.3 1776151134, 1776151277
  • Red Hat Red Hat Quay 3.10 1776736910
  • Red Hat Red Hat Quay 3.12 1776752646
  • Red Hat Red Hat Quay 3.14 1779689392
  • Red Hat Red Hat Quay 3.15 1775169219
  • Red Hat Red Hat Quay 3.16 1779204086
  • Red Hat Red Hat Quay 3.17 1779922205
  • Red Hat Red Hat Quay 3.18 1784987273
  • Red Hat Red Hat Quay 3.9 1775169218
  • node-svgo Debian 14 3.3.5+ds-1

debian advisories DEBIAN-CVE-2026-29074

  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.4-2.el8ap
  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.4-2.el9ap
  • python3.12-pyjwt ansible automation platform 2.5 2.12.1-1.el8ap
  • python3.12-pyjwt ansible automation platform 2.5 2.12.1-1.el9ap
  • python3.12-pyasn1 ansible automation platform 2.5 0.6.3-1.el8ap
  • python3.12-pyasn1 ansible automation platform 2.5 0.6.3-1.el9ap
  • python3.12-jwcrypto ansible automation platform 2.5 1.5.7-1.el8ap
  • python3.12-jwcrypto ansible automation platform 2.5 1.5.7-1.el9ap

red hat advisories RHSA-2026:13512RHSA-2026:6277

  • velociraptor openSUSE Tumbleweed 0.76.7.0.git145.b60ef1146-1.1

opensuse advisories openSUSE-SU-2026:12070-1

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-2026-29074 updated cvss 7.5

svgo: SVGO: Denial of Service via XML entity expansion

  • Red Hat Cryostat 4 io.cryostat-cryostat
    affected: workaround, no fix available
  • Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-ui-rhel9, openshift-pipelines/pipelines-hub-api-rhel8, openshift-pipelines/pipelines-hub-db-migration-rhel8 Red Hat 3scale API Management Platform 2 3scale-amp20/system, 3scale-amp21/system, 3scale-amp22/system, 3scale-amp24/system, 3scale-amp25/system, 3scale-amp26/system, +2 more
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Ansible Automation Platform 2 ansible-on-clouds/aoc-azure-aap-installer-rhel9 Red Hat build of Apicurio Registry 2 io.apicurio-apicurio-registry Red Hat Data Grid 8 org.infinispan-infinispan-console
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/disk-image-cuda-rhel9 Red Hat Fuse 7 io.syndesis-syndesis-parent
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Dev Spaces devspaces/machineexec-rhel9
    affected: workaround, no fix available
  • Red Hat OpenShift distributed tracing 3 rhosdt/tempo-jaeger-query-rhel8 Red Hat Single Sign-On 7 org.keycloak-keycloak-parent
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Self-service automation portal 2 ansible-automation-platform/automation-portal
    affected: workaround, no fix available
  • Red Hat Advanced Cluster Security 4.8 advanced-cluster-security 1775594119
    fixed: vendor fix RHSA-2026:7110
show 25 more
  • Red Hat Ansible Automation Platform 2.5 ansible-automation-platform-25 1777403872
    fixed: vendor fix RHSA-2026:13553
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-gateway-server 2.5.20260422-2.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-gateway-server 2.5.20260422-2.el9ap
    fixed: vendor fix RHSA-2026:13512
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26 1774243862, ansible-automation-platform-26 1777387242
    fixed: vendor fix RHSA-2026:6309
  • Red Hat Ansible Automation Platform 2.6 for RHEL 9 automation-platform-ui 2.6.7-1.el9ap
    fixed: vendor fix RHSA-2026:6277
  • Red Hat Developer Hub 1.8 rhdh 1776784286
    fixed: vendor fix RHSA-2026:9742
  • Red Hat Developer Hub 1.9 rhdh 1777903262
    fixed: vendor fix RHSA-2026:13826
  • Red Hat OpenShift AI 2.16 rhoai 1774282136
    fixed: vendor fix RHSA-2026:5807
  • Red Hat OpenShift AI 2.25 rhoai/odh-dashboard-rhel9 1780467029, rhoai/odh-mod-arch-model-registry-rhel9 1780467147
    fixed: vendor fix RHSA-2026:24977
  • Red Hat OpenShift AI 3.3 rhoai 1778473763, rhoai 1778666987, rhoai 1779189627
    fixed: vendor fix RHSA-2026:19712
  • Red Hat OpenShift Dev Spaces 3.28 devspaces/code-rhel9 1779814592
    fixed: vendor fix RHSA-2026:21772
  • Red Hat OpenShift Service Mesh 2.6 openshift-service-mesh 1776191302
    fixed: vendor fix RHSA-2026:8483
  • Red Hat OpenShift Service Mesh 3.0 openshift-service-mesh 1776151124, openshift-service-mesh 1776151272
    fixed: vendor fix RHSA-2026:8484
  • Red Hat OpenShift Service Mesh 3.1 openshift-service-mesh 1776151106, openshift-service-mesh 1776151270
    fixed: vendor fix RHSA-2026:8490
  • Red Hat OpenShift Service Mesh 3.2 openshift-service-mesh 1776149682, openshift-service-mesh 1776155669
    fixed: vendor fix RHSA-2026:8491
  • Red Hat OpenShift Service Mesh 3.3 openshift-service-mesh 1776151134, openshift-service-mesh 1776151277
    fixed: vendor fix RHSA-2026:8493
  • Red Hat Quay 3.9 quay 1775169218
    fixed: vendor fix RHSA-2026:6926
  • Red Hat Quay 3.10 quay 1776736910
    fixed: vendor fix RHSA-2026:11916
  • Red Hat Quay 3.12 quay 1776752646
    fixed: vendor fix RHSA-2026:11856
  • Red Hat Quay 3.14 quay/quay-rhel8 1779689392
    fixed: vendor fix RHSA-2026:21017
  • Red Hat Quay 3.15 quay 1775169219
    fixed: vendor fix RHSA-2026:6568
  • Red Hat Quay 3.16 quay 1779204086
    fixed: vendor fix RHSA-2026:19375
  • Red Hat Quay 3.17 quay/quay-rhel9 1779922205
    fixed: vendor fix RHSA-2026:22465
  • Red Hat Quay 3.18 quay/quay-rhel9 1784987273
    fixed: vendor fix RHSA-2026:48085
  • Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9
    not affected: vulnerable code not in execute path
  • Red Hat Multicluster Engine for Kubernetes multicluster-engine/console-mce-rhel9 Red Hat OpenShift Service Mesh 3 openshift-service-mesh/kiali-rhel9-operator, openshift-service-mesh/kiali-operator-bundle
    not affected: component not present

33 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
8 mo ago

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/svg/svgo/security/advisories/GHSA-xpqw-6gx7-v673 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm svgo
>=2.1.0, <2.8.1
>=3.0.0, <3.3.3
>=4.0.0, <4.0.1
2.8.1
3.3.3
4.0.1

Affected products

  • svg svgo
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
  • Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9
  • Red Hat Red Hat Advanced Cluster Security 4.8
  • Red Hat Red Hat Ansible Automation Platform 2.5
  • Red Hat Red Hat Ansible Automation Platform 2.6
  • Red Hat Red Hat Developer Hub 1.8
  • Red Hat Red Hat Developer Hub 1.9
  • Red Hat Red Hat OpenShift AI 2.16
  • Red Hat Red Hat OpenShift AI 2.25
  • Red Hat Red Hat OpenShift AI 3.3
  • Red Hat Red Hat OpenShift Dev Spaces 3.28
  • Red Hat Red Hat OpenShift Service Mesh 2.6
  • Red Hat Red Hat OpenShift Service Mesh 3.0
  • Red Hat Red Hat OpenShift Service Mesh 3.1
  • Red Hat Red Hat OpenShift Service Mesh 3.2
  • Red Hat Red Hat OpenShift Service Mesh 3.3
  • Red Hat Red Hat Quay 3.10
  • Red Hat Red Hat Quay 3.12
  • Red Hat Red Hat Quay 3.14
  • Red Hat Red Hat Quay 3.15
  • Red Hat Red Hat Quay 3.16
  • Red Hat Red Hat Quay 3.17
  • Red Hat Red Hat Quay 3.18
  • Red Hat Red Hat Quay 3.9
  • Red Hat Cryostat 4
  • Red Hat Gatekeeper 3
  • Red Hat Multicluster Engine for Kubernetes
  • Red Hat OpenShift Pipelines
  • Red Hat OpenShift Service Mesh 3
  • Red Hat Red Hat 3scale API Management Platform 2
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
  • Red Hat Red Hat Ansible Automation Platform 2
  • Red Hat Red Hat build of Apicurio Registry 2
  • Red Hat Red Hat build of OptaPlanner 8
  • Red Hat Red Hat Data Grid 8
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3
  • Red Hat Red Hat Fuse 7
  • Red Hat Red Hat JBoss Enterprise Application Platform 8
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Red Hat OpenShift Container Platform 4
  • Red Hat Red Hat OpenShift Dev Spaces
  • Red Hat Red Hat OpenShift distributed tracing 3
  • Red Hat Red Hat Single Sign-On 7
  • Red Hat Self-service automation portal 2

Classification

Weakness
  • CWE-776 Improper Restriction of Recursive Entity References in DTDs

References

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.