CVE-2026-83613

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMHandler.startElement in lib/dom-parser.js inserts every parsed attribute through setAttributeNode...

CVE-2026-83613 xmldom: Quadratic-time attribute deduplication

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMHandler.startElement in lib/dom-parser.js inserts every parsed attribute through setAttributeNode...

CVE-2026-83612

xmldom is a pure JavaScript DOMParser and XMLSerializer module. In versions from 0.9.0-beta.1 up to the fix in 0.9.12 , HTML-mode parsing via DOMParser.parseFromString() mishandles mixed-case closing tags for raw-text elements (script, style, textarea, title). The root cause is that parseHtmlSpec...

CVE-2026-83612 xmldom: HTML raw-text closing-tag case mismatch causes output amplification

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. From 0.9.0-beta.1 until 0.9.12, HTML-mode parsing through DOMParser.parseFromString mishandles a mixed-case closing tag for the script, style, textarea, or title raw-text elements...

CVE-2026-83611

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMParser.parseFromString can silently accept an end tag such as , close the element, and discard th...

CVE-2026-83611 xmldom: Parser silently accepts a not-well-formed end tag whose name is followed by a line break and trailing content

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMParser.parseFromString can silently accept an end tag such as , close the element, and discard th...

CVE-2026-83611 xmldom: Parser silently accepts a not-well-formed end tag whose name is followed by a line break and trailing content

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, DOMParser.parseFromString can silently accept an end tag such as , close the element, and discard th...

CVE-2026-83609 xmldom: Creation-time XML Name/QName validation is bypassable via an embedded line terminator, allowing injection on the default serialization path

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. From 0.9.0 until 0.9.12, the shared reg builder in lib/grammar.js compiles the anchored QNameexact validator with the multiline flag, so ^ and $ validate only one line instead of the complete...

CVE-2026-83608 xmldom: DocType `name` Injection Bypasses requireWellFormed

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, the DOCUMENTTYPENODE branch in lib/dom.js validates publicId, systemId, and internalSubset under...

CVE-2026-83608 xmldom: DocType `name` Injection Bypasses requireWellFormed

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, the DOCUMENTTYPENODE branch in lib/dom.js validates publicId, systemId, and internalSubset under...

CVE-2026-83608

xmldom (a pure JavaScript XML DOM module) is vulnerable to a DocType name injection that bypasses the requireWellFormed strict mode. The DOCUMENT_TYPE_NODE branch in lib/dom.js validates publicId, systemId, and internalSubset but emits DocumentType.name verbatim; a name containing > or whitesp...

CVE-2026-83606

@xmldom/xmldom (a pure-JavaScript DOMParser/XMLSerializer module) is affected by a Regular Expression Denial of Service (ReDoS) in its processing-instruction grammar between versions 0.9.0-beta.9 and 0.9.11 . The root cause is a quadratic backtracking pattern in lib/grammar.js, where a greedy S+ ...

CVE-2026-83606 xmldom PI grammar regex ReDoS: quadratic backtracking on unterminated processing instructions

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. From 0.9.0-beta.9 until 0.9.11, the processing-instruction production in lib/grammar.js lets the greedy S+ separator and lazy Char? data group repeatedly repartition a long whitespace tail when...

CVE-2026-83606

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. From 0.9.0-beta.9 until 0.9.11, the processing-instruction production in lib/grammar.js lets the greedy S+ separator and lazy Char? data group repeatedly repartition a long whitespace tail when...

Linux Distros Unpatched Vulnerability : CVE-2026-83608

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and ...

CVE-2026-83614: Uncontrolled Resource Consumption

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom versions 0.3.0 through 0.6.0, two independent quadratic paths can cause denial of service. In lib/sax.js, parseElementStartPart...

PT-2026-82210

Name of the Vulnerable Software and Affected Versions SunEditor versions prior to 3.1.4 Description A DOM-based Cross-Site Scripting XSS issue exists in the SunEditor Embed plugin within src/plugins/modal/embed.js. The plugin uses DOMParser to parse raw embed HTML and processes the resulting DOM...

CVE-2026-54606: Improper Neutralization of Input During Web Page Generation

SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 3.1.4, the SunEditor Embed plugin in src/plugins/modal/embed.js parses attacker-controlled raw embed HTML with DOMParser and processes the resulting DOM nodes. When an external script eleme...

PT-2026-84280

Name of the Vulnerable Software and Affected Versions @xmldom/xmldom versions prior to 0.8.15 @xmldom/xmldom versions prior to 0.9.12 xmldom versions 0.6.0 and earlier Description The Document.createProcessingInstructiontarget, data function in lib/dom.js accepts an unvalidated target parameter...

PT-2026-84278

Name of the Vulnerable Software and Affected Versions @xmldom/xmldom versions prior to 0.8.15 @xmldom/xmldom versions prior to 0.9.12 xmldom versions 0.3.0 through 0.6.0 Description Two independent quadratic paths can cause a denial of service. In the lib/sax.js file, the parseElementStartPart...