CVE-2026-66010

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

PT-2026-63984

DOMPurify before 3.4.11 fails to clone the ALLOWED ATTR allowlist when setConfig is used with an uponSanitizeAttribute hook, allowing the hook to permanently mutate the shared allowlist. Attackers can register a hook that conditionally allows dangerous attributes like onerror for trusted elements...

PT-2026-63989

DOMPurify before 3.4.0 contains a logic error in the ADD TAGS function where short-circuit evaluation allows forbidden tags to bypass FORBID TAGS restrictions. Attackers can craft input containing tags listed in FORBID TAGS that are also added via ADD TAGS function, causing them to be retained in...

Security Bulletin: IBM DataPower Gateway affected by cross-site scripting due to DOMPurify (CVE-2026-0540)

Summary DOMPurify is used by the UI component of IBM DataPower Gateway Vulnerability Details CVEID:CVE-2026-0540 DESCRIPTION: DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute...

Linux Distros Unpatched Vulnerability : CVE-2026-49458

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitizenode, INPLACE: true accepted same-origin...

Cross-site Scripting (XSS)

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the INPLACE process when attacker-controlled live DOM nodes are sanitized. An attacker can execute arbitrary scripts in the...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in dompurify-3.2.6.tgz

Summary IBM Watson Discovery Cartridge affected by vulnerability in dompurify-3.2.6.tgz Vulnerability Details CVEID:CVE-2025-15599 DESCRIPTION: DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization...

Security Bulletin: Investigation Assistant App for IBM QRadar SIEM is vulnerable to using components with known vulnerabilities

Summary The product includes vulnerable components e.g., framework libraries that could be identified and exploited with automated tools. Investigation Assistant App for IBM QRadar SIEM has addressed the applicable CVEs in an update. Vulnerability Details CVEID:CVE-2025-27789 DESCRIPTION: Babel i...

Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses dompurify-3.3.2.tgz which is vulnerable to CVE-2026-41238, CVE-2026-41239, CVE-2026-41240

Summary IBM Maximo Application Suite - Visual Inspection component uses dompurify-3.3.2.tgz which is vulnerable to CVE-2026-41238, CVE-2026-41239, CVE-2026-41240 , This bulletin contains information regarding the vulnerability and its remediation. Vulnerability Details CVEID:CVE-2026-41238...

Security Bulletin: Cross-site scripting, authentication bypass by spoofing, and other vulnerabilities might affect IBM Storage Defender - Resiliency Service

Summary IBM Storage Defender - Resiliency Service is vulnerable to cross-site scripting, authentication bypass by spoofing, and others. The vulnerabilities have been addressed. Vulnerability Details CVEID:CVE-2025-15599 DESCRIPTION: DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a...

Fedora 42 : python-jupytext (2026-793b55138d)

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-793b55138d advisory. This update contains upgrades to various npm packages used during the build to address CVEs, namely: - CVE-2025-69873 ajv - CVE-2026-0540 DOMPurify ...

Security Bulletin: There is a vulnerability in dompurify-3.2.4.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2025-15599, CVE-2026-0540)

Summary There is a vulnerability in dompurify-3.2.4.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite. Vulnerability Details CVEID:CVE-2025-15599 DESCRIPTION: DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a cross-site scripting vulnerability that allows...

Security Bulletin: IBM Maximo Application Suite - Monitor Component uses dompurify-3.2.7.tgz, dompurify-3.3.0.tgz, dompurify-3.3.1.tgz which is vulnerable to CVE-2026-0540.

Summary IBM Maximo Application Suite - Monitor Component uses dompurify-3.2.7.tgz, dompurify-3.3.0.tgz, dompurify-3.3.1.tgz which is vulnerable to CVE-2026-0540. This bulletin contains information addressing the vulnerability. Vulnerability Details CVEID:CVE-2026-0540 DESCRIPTION: DOMPurify 3.1.3...

CVE-2026-41240

Summary of technical details (CVE-2026-41240) : DOMPurify prior to 3.4.0 has an inconsistency between FORBID_TAGS and FORBID_ATTR when function-based ADD_TAGS is used. The fix added an early exit for FORBID_ATTR but the FORBID_TAGS path remained unpatched, causing short-circuiting that allows for...

Linux Distros Unpatched Vulnerability : CVE-2026-41240

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBIDTAGS and FORBIDATT...

011xwztpjn (=1.0.0), 02y9dg4qm3 (=1.0.0) +11393 more potentially affected by CVE-2026-41239 via dompurify (>=1.0.10 <=3.3.3)

dompurify NPM version =1.0.10, =3.3.3 is affected by a known vulnerability. The following packages have a transitive dependency on dompurify and may be impacted: - 011xwztpjn =1.0.0 - 02y9dg4qm3 =1.0.0 - 04tw75kmd9 =1.0.0 - 0650teqqly =1.0.0 - 097oi25ils =1.0.0 - 0a0fpniotn =1.0.0 - 0c7j76u46q...

DOMPurify: Prototype Pollution to XSS Bypass via CUSTOM_ELEMENT_HANDLING Fallback

Summary DOMPurify versions 3.0.1 through 3.3.3 latest are vulnerable to a prototype pollution-based XSS bypass. When an application uses DOMPurify.sanitize with the default configuration no CUSTOMELEMENTHANDLING option, a prior prototype pollution gadget can inject permissive tagNameCheck and...

1router (>=0.3.96 <=1.0.2), 9router-custom (=0.3.55) +2166 more potentially affected by CVE-2026-41238 via dompurify (>=3.0.1 <=3.3.3)

dompurify NPM version =3.0.1, =0.3.96, =0.3.33, =0.5.0, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.0.1, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =0.2.8-experimental.0, =1.2.0, =1.5.1 and more Source cves: CVE-2026-41238 Source advisory: OSV:GHSA-V9JR-RG53-9PGP...

Security Bulletin: IBM Security SOAR is using a component with a known vulnerability (CVE-2025-15599)

Summary IBM Security SOAR uses an older version of the DOMPurify component that may be identified and exploited. Updates for supported versions have been released which address the issue. It is recommended to upgrade to version 51.0.9.2 Vulnerability Details CVEID:CVE-2025-15599 DESCRIPTION:...

Cross-site Scripting (XSS)

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS leading to cross-site scripting, via custom elements. When CUSTOMELEMENTHANDLING is not enabled, and an attacker has already pollut...