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dompurify: DOMPurify: Cross-site scripting via permanent attribute allowlist pollution

🗓️ 22 Aug 2026 14:06:09Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 8 Views

DOMPurify stored XSS via permanent ALLOWED_ATTR pollution in uponSanitizeAttribute hook.

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IBM Security Bulletins		Security Bulletin: The Log Source Management App for IBM QRadar SIEM contains components with known vulnerabilities
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IBM Security Bulletins		Security Bulletin: The Network Threat Analytics App for IBM QRadar SIEM contains components with known vulnerabilities
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IBM Security Bulletins		Security Bulletin: Resolved multiple XSS vulnerabilities in DOMPurify (CVE-2026-49978, CVE-2026-65898, CVE-2026-66010, and others)
7 Aug 202609:26
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ibm
IBM Security Bulletins		Security Bulletin: Resolved multiple XSS vulnerabilities in DOMPurify (CVE-2026-49978, CVE-2026-65898, CVE-2026-66010, and others)
7 Aug 202609:29
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attackerkb
ATTACKERKB		CVE-2026-65898
23 Jul 202613:16
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Chainguard		CVE-2026-65898 vulnerabilities
24 Jul 202620:25
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circl
Circl		CVE-2026-65898
23 Jul 202614:35
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cve
CVE		CVE-2026-65898
23 Jul 202613:16
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cvelist
Cvelist		CVE-2026-65898 DOMPurify before 3.4.11 Permanent Attribute Allowlist Pollution via setConfig
23 Jul 202613:16
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64grafana13.113.1.3-0.1.3.hum1grafana13.1-13.1.3-0.1.3.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64grafana13.113.1.3-0.1.3.hum1grafana13.1-13.1.3-0.1.3.hum1.x86_64.rpm

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25 Aug 2026 09:33Current
5.6Medium risk
Vulners AI Score5.6
CVSS 45.1
CVSS 3.17.2
EPSS0.00212
SSVC
CWE-79
DOMPurifystored XSSallowlist pollutionuponSanitizeAttributesetConfigevent handlers
8