Bug 2549763 (CVE-2026-109345) - CVE-2026-109345 dompurify: DOMPurify: Cross-site scripting via unsanitized raw text in in-place mode
Summary: CVE-2026-109345 dompurify: DOMPurify: Cross-site scripting via unsanitized ra...
Keywords:
Status: NEW
Alias: CVE-2026-109345
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-12 16:44 UTC by OSIDB Bzimport
Modified: 2026-10-12 17:03 UTC (History)
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Description OSIDB Bzimport 2026-10-12 16:44:47 UTC 
DOMPurify before 3.4.16 contains a cross-site scripting vulnerability that allows attackers to bypass sanitization because IN_PLACE mode returns a force-removed style element whose text content still carries markup. Attackers can supply a style element containing a closing style tag and an img onerror payload, which executes script when the application serializes and re-parses the returned node.
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