> CVE-2026-49978 [MEDIUM]

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PUBLISHED
2026-07-14 21:17
MODIFIED
2026-07-14 21:17
CVSS_SCORE V3
6.3
EPSS (Prob. Exploit)
0.40%
Top 65.3%
DATA SOURCES:
NVD 🔗 2026-07-14 RED HAT 🔗 2026-07-19 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 GITHUB 🔗 2026-11-05 OSV 🔗 2026-10-26

> DESCRIPTION

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.7, DOMPurify IN_PLACE sanitization could skip shadow contents attached to an element inside <template>.content, allowing attacker-controlled markup such as event handlers, JavaScript URLs, or scripts to survive and execute when an application cloned and inserted the sanitized template. This issue is fixed in version 3.4.7.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-79

> CWE DETAILED DESCRIPTIONS

CWE-79: Improper Neutralization of Input During Web Page Generation - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.2 security update
Updated images are now available for Red Hat Ansible Automation Platform 2.2, which include new features, bug fixes, and enhancements for Red Hat Ansible Automation Platform integration with Red Hat D...
Red Hat Security Advisory: OpenShift Virtualization v4.22 Images
Red Hat OpenShift Virtualization release v4.22 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory: OpenShift Virtualization v4.12 Images
Red Hat OpenShift Virtualization release v4.12 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory: OpenShift Virtualization v4.17 Images
Red Hat OpenShift Virtualization release v4.17 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory: OpenShift Virtualization v4.14 Images
Red Hat OpenShift Virtualization release v4.14 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory: Red Hat Developer Hub 1.10.3 Plugin Catalog GA plugins release.
Red Hat Developer Hub 1.10.3 Plugin Catalog GA plugins release.
Red Hat Security Advisory: RHACS 4.9.10 security and bug fix update
Updated images are now available for Red Hat Advanced Cluster Security (RHACS), which typically include new features, bug fixes, and/or security patches.
Red Hat Security Advisory: RHACS 4.10.6 security and bug fix update
Updated images are now available for Red Hat Advanced Cluster Security (RHACS), which typically include new features, bug fixes, and/or security patches.
Red Hat Security Advisory: RHACS 4.11.2 security and bug fix update
Updated images are now available for Red Hat Advanced Cluster Security (RHACS), which typically include new features, bug fixes, and/or security patches.
Red Hat Security Advisory: Red Hat Developer Hub 1.10.3 release.
Red Hat Developer Hub 1.10.3 has been released.
Red Hat Security Advisory: OpenShift Container Platform 4.22.8 bug fix and security update
Red Hat OpenShift Container Platform release 4.22.8 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: OpenShift Container Platform 4.21.27 bug fix and security update
Red Hat OpenShift Container Platform release 4.21.27 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.20.32 bug fix and security update
Red Hat OpenShift Container Platform release 4.20.32 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: Kiali 2.27.2 for Red Hat OpenShift Service Mesh 3.4
Kiali 2.27.2 for Red Hat OpenShift Service Mesh 3.4 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CV...
Red Hat Security Advisory: Kiali 2.22.8 for Red Hat OpenShift Service Mesh 3.3
Kiali 2.22.8 for Red Hat OpenShift Service Mesh 3.3 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CV...
Red Hat Security Advisory: Red Hat Developer Hub 1.9.8 release.
Red Hat Developer Hub 1.9.8 has been released.
Red Hat Security Advisory: OpenShift Virtualization v4.15 Images
Red Hat OpenShift Virtualization release v4.15 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory: OpenShift Virtualization v4.13 Images
Red Hat OpenShift Virtualization release v4.13 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory: OpenShift Container Platform 4.19.42 bug fix and security update
Red Hat OpenShift Container Platform release 4.19.42 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: Streams for Apache Kafka 3.2.1 release and security update
Streams for Apache Kafka 3.2.1 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...
Red Hat Security Advisory: rh-podman-desktop security, bug fix, and enhancement update
An update for rh-podman-desktop is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scori...
Red Hat Security Advisory: Apicurio Registry (container images) release and security update [ 3.3.1 GA ]
An update to the images for Red Hat build of Apicurio Registry is now available from the Red Hat Container Catalog. The purpose of this text-only errata is to inform you about the security issues fixe...
Red Hat Security Advisory: RHOAI 3.4.4 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.30.0 Release.
Red Hat OpenShift Dev Spaces 3.30.0 has been released.
Red Hat Security Advisory: RHOAI 2.25.11 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat AMQ Broker 7.13.6 release and security update
Red Hat AMQ Broker 7.13.6 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Sy...
Red Hat Security Advisory: Red Hat AMQ Broker 7.14.1 release and security update
Red Hat AMQ Broker 7.14.1 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Sy...
Red Hat Security Advisory: Red Hat build of Cryostat security update
An update is now available for the Red Hat build of Cryostat 4 on RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Syste...
Red Hat Security Advisory: Red Hat Data Grid 8.6.3 security update
An update for Red Hat Data Grid 8 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,...
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-rp9w-3fw7-7cwq MODERATE

DOMPurify IN_PLACE Sanitization Bypass via Attached Shadow Root Inside <template>.content

AFFECTED PACKAGES:
NPM / dompurify
<= 3.4.6
Fixed in: 3.4.7

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

DOMPurify IN_PLACE Sanitization Bypass via Attached Shadow Root Inside <template>.content

AFFECTED PACKAGES:
Unknown / Unknown
97 versions affected
ALIASES:
GHSA-rp9w-3fw7-7cwq

> HISTORIQUE DES MODIFICATIONS

Première apparition
14/07/2026 21:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...
Nouvelle valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a...
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...
📊 ENRICHISSEMENT 19/07/2026 05:00
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 23:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 22:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 21:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 20:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 19:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 18:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 17:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 16:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 15:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 14:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 13:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
{ "severity_scale": null, "threat_severity": "Important" }
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 12:30
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 15/07/2026 12:30
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 16 Dernière mise à jour: 5 days ago

> REFERENCES

https://github.com/cure53/DOMPurify/commit/ca30f070c360df162a3e3848e80e6fd3c9e74...
https://github.com/cure53/DOMPurify/releases/tag/3.4.7
https://github.com/cure53/DOMPurify/security/advisories/GHSA-rp9w-3fw7-7cwq
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