Update dependency dompurify to v3 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
dompurify	^2.0.7 → ^3.0.0

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DOMPurify allows Cross-site Scripting (XSS)

CVE-2025-26791 / GHSA-vhxf-7vqr-mrjg

More information

Details

DOMPurify before 3.2.4 has an incorrect template literal regular expression when SAFE_FOR_TEMPLATES is set to true, sometimes leading to mutation cross-site scripting (mXSS).

Severity

• CVSS Score: 4.5 / 10 (Medium)
• Vector String: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-26791
• https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02
• https://ensy.zip/posts/dompurify-323-bypass
• https://github.com/cure53/DOMPurify/releases/tag/3.2.4
• https://nsysean.github.io/posts/dompurify-323-bypass
• https://github.com/advisories/GHSA-vhxf-7vqr-mrjg

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

cure53/DOMPurify (dompurify)

v3.4.12: DOMPurify 3.4.12

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• Fixed an issue where a hook would not get called for custom elements, thanks @​Rikuxx0
• Hardened the handling of hooks removing elements, @​mkrause-bee360
• Added support for a few new SVG attributes, thanks @​cbn-falias & @​Develop-KIM
• Hardened the handling of declarative partial updates
• Updated the documentation is several spots, README, wiki, etc.
• Bumped several dependencies where possible

v3.4.11: DOMPurify 3.4.11

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• Fixed an issue with a leaky config for hooks via setConfig, thanks @​trace37labs
• Bumped vulnerable development dependencies to arrive at plain 0 with npm audit
• Updated the osv-scanner suppression list as no vulnerable dependencies are left for now
• Updated up the linting tool-chain and removed now-redundant lint directives
• Updated the documentation is several spots, README, wiki, etc.
• Bumped several dependencies where possible

v3.4.10: DOMPurify 3.4.10

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• Refactored codebase for clarity: extracted the public type declarations into types.ts
• Decomposed the three largest sanitizer functions into focused helpers
• Removed duplicated defaults and dead branches, consolidated SAFE_FOR_TEMPLATES scrubbing into single shared path
• Improved per-node performance by hoisting the mXSS probe regexes and testing textContent before innerHTML
• Added a deterministic micro-benchmark harness (npm run bench) with a --compare mode
• Reduced CI cost by running the full three-engine browser suite once per PR
• Refreshed the demos/ folder so every demo runs again, and added a SVG-via-<img> demo
• Documented the bench and test:happydom scripts in the README
• Completed the Attack Classes & Bypass History wiki page
• Bumped several dependencies where possible

v3.4.9: DOMPurify 3.4.9

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• Further improved the handling of Trusted Types config options, thanks @​offset
• Further improved the handling of IN_PLACE sanitization, thanks @​mozfreddyb
• Added more test coverage for IN_PLACE and Trusted Types related usage
• Bumped several dependencies where possible
• Updated README and wiki with more accurate documentation & attack samples

v3.4.8: DOMPurify 3.4.8

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• Cleaned up the repository root, renamed some and removed unneeded files
• Fixed an issue with handling of Trusted Types policies, thanks @​fulstadev
• Fixed the node iterator for better template scrubbing, thanks @​IamLeandrooooo
• Included formerly missing LICENSE-MPL in published npm package, thanks @​asamuzaK
• Bumped several dependencies where possible

v3.4.7: DOMPurify 3.4.7

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• Hardened the handling of Shadow Roots when using IN_PLACE, thanks @​GameZoneHacker
• Removed a problem leading to permanent hook pollution, thanks @​offset
• Refactored the test suite and expanded test coverage significantly

v3.4.6: DOMPurify 3.4.6

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• Fixed several issues with DOM Clobbering in IN_PLACE mode, thanks @​offset & @​Bankde
• Hardened the checks for cross-realm IN_PLACE and Shadow DOM sanitization, thanks @​offset & @​Bankde
• Added more test coverage for IN_PLACE and general DOM Clobbering attacks
• Bumped several dependencies where possible

v3.4.5: DOMPurify 3.4.5

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• Fixed a bypass caused by the new HTML element selectedcontent added in 3.4.4, thanks @​KabirAcharya

Note that this is a security release for an issue introduced in 3.4.4 and should be upgraded to immediately.

v3.4.4: DOMPurify 3.4.4

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• Added the selectedcontent element to default allow-list, thanks @​lukewarlow
• Added the command and commandfor attributes to default allowed-list, thanks @​lukewarlow
• Added better template scrubbing for IN_PLACE operations, thanks @​DEMON1A
• Added stronger checks for cross-realm windows, thanks @​DEMON1A & @​fg0x0
• Updated demo website and made sure it uses the latest from main
• Updated existing workflows, fuzzer, dependabot, etc., added more tests
• Bumped several dependencies where possible

🚨 This release had been flagged as deprecated, please use DOMPurify 3.4.5 instead 🚨

v3.4.3: DOMPurify 3.4.3

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• Fixed an issue with handling of nested Shadow DOM trees, thanks @​fishjojo1
• Fixed the template regexes to be more robust against ReDoS attacks, thanks @​aleung27
• Updated the node iteration code to catch more Shadow DOM related issues
• Updated Playwright and added Node 26 to test matrix
• Updated existing workflows, fuzzer, release signing, etc., added more tests
• Bumped several dependencies where possible

v3.4.2: DOMPurify 3.4.2

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• Fixed an issue with URI validation on attributes allowed via ADD_ATTR callback, thanks @​nelstrom
• Fixed an issue with source maps referring to non-existing files, thanks @​cmdcolin
• Updated existing workflows, fuzzer, release signing, etc., added more tests
• Bumped several dependencies where possible

v3.4.1: DOMPurify 3.4.1

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• Fixed an issue with on-handler stripping for HTML-spec-reserved custom element names (font-face, color-profile, missing-glyph, font-face-src, font-face-uri, font-face-format, font-face-name) under permissive CUSTOM_ELEMENT_HANDLING
• Fixed a case-sensitivity gap in the annotation-xml check that allowed mixed-case variants to bypass the basic-custom-element exclusion in XHTML mode
• Fixed SANITIZE_NAMED_PROPS repeatedly prefixing already-prefixed id and name values on subsequent sanitization
• Fixed the IN_PLACE root-node check to explicitly guard against non-string nodeName (DOM-clobbering robustness)
• Removed a duplicate slot entry from the default HTML attribute allow-list
• Strengthened the fast-check fuzz harness with explicit XSS invariants, an expanded seed-payload corpus, an additional idempotence property for SANITIZE_NAMED_PROPS, and a negative-control assertion ensuring the invariants actually fire
• Added regression and pinning tests covering the above fixes and two accepted-behavior contracts (SAFE_FOR_TEMPLATES greedy scrub, hook-added attribute handling)
• Extended CodeQL analysis to run on 3.x and 2.x maintenance branches

v3.4.0: DOMPurify 3.4.0

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Most relevant changes:

• Fixed a problem with FORBID_TAGS not winning over ADD_TAGS, thanks @​kodareef5
• Fixed several minor problems and typos regarding MathML attributes, thanks @​DavidOliver
• Fixed ADD_ATTR/ADD_TAGS function leaking into subsequent array-based calls, thanks @​1Jesper1
• Fixed a missing SAFE_FOR_TEMPLATES scrub in RETURN_DOM path, thanks @​bencalif
• Fixed a prototype pollution via CUSTOM_ELEMENT_HANDLING, thanks @​trace37labs
• Fixed an issue with ADD_TAGS function form bypassing FORBID_TAGS, thanks @​eddieran
• Fixed an issue with ADD_ATTR predicates skipping URI validation, thanks @​christos-eth
• Fixed an issue with USE_PROFILES prototype pollution, thanks @​christos-eth
• Fixed an issue leading to possible mXSS via Re-Contextualization, thanks @​researchatfluidattacks and others
• Fixed an issue with closing tags leading to possible mXSS, thanks @​frevadiscor
• Fixed a problem with the type dentition patcher after Node version bump
• Fixed freezing BS runs by reducing the tested browsers array
• Bumped several dependencies where possible
• Added needed files for OpenSSF scorecard checks

Published Advisories are here:
https://github.com/cure53/DOMPurify/security/advisories?state=published

v3.3.3: DOMPurify 3.3.3

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• Fixed an engine requirement for Node 20 which caused hiccups, thanks @​Rotzbua

v3.3.2: DOMPurify 3.3.2

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• Fixed a possible bypass caused by jsdom's faulty raw-text tag parsing, thanks multiple reporters
• Fixed a prototype pollution issue when working with custom elements, thanks @​christos-eth
• Fixed a lenient config parsing in _isValidAttribute, thanks @​christos-eth
• Bumped and removed several dependencies, thanks @​Rotzbua
• Fixed the test suite after bumping dependencies, thanks @​Rotzbua

v3.3.1: DOMPurify 3.3.1

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• Updated ADD_FORBID_CONTENTS setting to extend default list, thanks @​MariusRumpf
• Updated the ESM import syntax to be more correct, thanks @​binhpv

v3.3.0: DOMPurify 3.3.0

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• Added the SVG mask-type attribute to default allow-list, thanks @​prasadrajandran
• Added support for ADD_ATTR and ADD_TAGS to accept functions, thanks @​nelstrom
• Fixed an issue with the slot element being in both SVG and HTML allow-list, thanks @​Wim-Valgaeren

v3.2.7: DOMPurify 3.2.7

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• Added new attributes and elements to default allow-list, thanks @​elrion018
• Added tagName parameter to custom element attributeNameCheck, thanks @​nelstrom
• Added better check for animated href attributes, thanks @​llamakko
• Updated and improved the bundled types, thanks @​ssi02014
• Updated several tests to better align with new browser encoding behaviors
• Improved the handling of potentially risky content inside CDATA elements, thanks @​securityMB & @​terjanq
• Improved the regular expression for raw-text elements to cover textareas, thanks @​securityMB & @​terjanq

v3.2.6: DOMPurify 3.2.6

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• Fixed several typos and removed clutter from our documentation, thanks @​Rotzbua
• Added matrix: as an allowed URI scheme, thanks @​kleinesfilmroellchen
• Added better config hardening against prototype pollution, thanks @​EffectRenan
• Added better handling of attribute removal, thanks @​michalnieruchalski-tiugo
• Added better configuration for aggressive mXSS scrubbing behavior, thanks @​BryanValverdeU
• Removed the script that caused the fake entry CVE-2025-48050

v3.2.5: DOMPurify 3.2.5

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• Added a check to the mXSS detection regex to be more strict, thanks @​masatokinugawa
• Added ESM type imports in source, removes patch function, thanks @​donmccurdy
• Added script to verify various TypeScript configurations, thanks @​reduckted
• Added more modern browsers to the Karma launchers list
• Added Node 23.x to tested runtimes, removed Node 17.x
• Fixed the generation of source maps, thanks @​reduckted
• Fixed an unexpected behavior with ALLOWED_URI_REGEXP using the 'g' flag, thanks @​hhk-png
• Fixed a few typos in the README file

v3.2.4: DOMPurify 3.2.4

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• Fixed a conditional and config dependent mXSS-style bypass reported by @​nsysean
• Added a new feature to allow specific hook removal, thanks @​davecardwell
• Added purify.js and purify.min.js to exports, thanks @​Aetherinox
• Added better logic in case no window object is president, thanks @​yehuya
• Updated some dependencies called out by dependabot
• Updated license files etc to show the correct year

v3.2.3: DOMPurify 3.2.3

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• Fixed two conditional sanitizer bypasses discovered by @​parrot409 and @​Slonser
• Updated the attribute clobbering checks to prevent future bypasses, thanks @​parrot409

v3.2.2: DOMPurify 3.2.2

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• Fixed a possible bypass in case a rather specific config for custom elements is set, thanks @​yaniv-git
• Fixed several minor issues with the type definitions, thanks again @​reduckted
• Fixed a minor issue with the types reference for trusted types, thanks @​reduckted
• Fixed a minor problem with the template detection regex on some systems, thanks @​svdb99

v3.2.1: DOMPurify 3.2.1

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• Fixed several minor issues with the type definitions, thanks @​reduckted @​ghiscoding @​asamuzaK @​MiniDigger
• Fixed an issue with non-minified dist files and order of imports, thanks @​reduckted

v3.2.0: DOMPurify 3.2.0

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• Added type declarations, thanks @​reduckted , @​philmayfield, @​aloisklink, @​ssi02014 and others
• Fixed a minor issue with the handling of hooks, thanks @​kevin-mizu

v3.1.7: DOMPurify 3.1.7

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• Fixed an issue with comment detection and possible bypasses with specific config settings, thanks @​masatokinugawa
• Fixed several smaller typos in documentation and test & build files, thanks @​christianhg
• Added better support for Angular compiler, thanks @​jeroen1602
• Added several new attributes to HTML and SVG allow-list, thanks @​Gigabyte5671 and @​Rotzbua
• Removed the foreignObject element from the list of HTML entry-points, thanks @​masatokinugawa
• Bumped several dependencies to be more up to date

v3.1.6: DOMPurify 3.1.6

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• Fixed an issue with the execution logic of attribute hooks to prevent bypasses, thanks @​kevin-mizu
• Fixed an issue with element removal leading to uncaught errors through DOM Clobbering, thanks @​realansgar
• Fixed a minor problem with the bower file pointing to the wrong dist path
• Fixed several minor typos in docs, comments and comment blocks, thanks @​Rotzbua
• Updated several development dependencies

v3.1.5: DOMPurify 3.1.5

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• Fixed a minor issue with the dist paths in bower.js, thanks @​HakumenNC
• Fixed a minor issue with sanitizing HTML coming from copy&paste Word content, thanks @​kakao-bishop-cho

v3.1.4: DOMPurify 3.1.4

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• Fixed an issue with the recently implemented isNaN checks, thanks @​tulach
• Added several new popover attributes to allow-list, thanks @​Gigabyte5671
• Fixed the tests and adjusted the test runner to cover all branches

v3.1.3: DOMPurify 3.1.3

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• Fixed several mXSS variations found by and thanks to @​kevin-mizu & @​Ry0taK
• Added better configurability for comment scrubbing default behavior
• Added better hardening against Prototype Pollution attacks, thanks @​kevin-mizu
• Added better handling and readability of the nodeType property, thanks @​ssi02014
• Fixed some smaller issues in README and other documentation

v3.1.2: DOMPurify 3.1.2

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• Addressed and fixed a mXSS variation found by @​kevin-mizu
• Addressed and fixed a mXSS variation found by Adam Kues of Assetnote
• Updated tests for older Safari and Chrome versions

v3.1.1: DOMPurify 3.1.1

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• Fixed an mXSS sanitiser bypass reported by @​icesfont
• Added new code to track element nesting depth
• Added new code to enforce a maximum nesting depth of 255
• Added coverage tests and necessary clobbering protections

Note that this is a security release and should be upgraded to immediately. Please also note that further releases may follow as the underlying vulnerability is apparently new and further variations may be discovered.

v3.1.0: DOMPurify 3.1.0

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• Added new setting SAFE_FOR_XML to enable better control over comment scrubbing
• Updated README to warn about happy-dom not being safe for use with DOMPurify yet
• Updated the LICENSE file to show the accurate year number
• Updated several build and test dependencies

v3.0.11: DOMPurify 3.0.11

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• Fixed another conditional bypass caused by Processing Instructions, thanks @​Ry0taK
• Fixed the regex for HTML Custom Element detection, thanks @​AlekseySolovey3T

v3.0.10: DOMPurify 3.0.10

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• Fixed two possible bypasses when sanitizing an XML document and later using it in HTML, thanks @​Slonser
• Bumped up some build and test dependencies

v3.0.9: DOMPurify 3.0.9

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• Fixed a problem with proper detection of Custom Elements, thanks @​kevin-mizu
• Refactored the hasOwnProperty logic, thanks @​ssi02014
• Removed a superfluous console.warn making HappyDom happier, thanks @​HugoPoi
• Modernized some of the demo hooks for better looks, thanks @​Steb95

v3.0.8: DOMPurify 3.0.8

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• Fixed errors caused by conditional exports, thanks @​ssi02014
• Fixed a type error when working with custom element config, thanks @​cpmotion

v3.0.7: DOMPurify 3.0.7

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• Added better protection against CSPP attacks, thanks @​kevin-mizu
• Updated browser versions for automated tests
• Updated Node versions for automated tests
• Refactored code base, thanks @​ssi02014
• Refactored build system & deployment, thanks @​ssi02014

v3.0.6: DOMPurify 3.0.6

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• Refactored the core code-base and several utilities, thanks @​ssi02014
• Updated and fixed several sections of the README, thanks @​ssi02014
• Updated several outdated build and test dependencies

v3.0.5: DOMPurify 3.0.5

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• Fixed a licensing issue spotted and reported by @​george-thomas-hill
• Updated several build and test dependencies

v3.0.4: DOMPurify 3.0.4

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• Fixed a bypass in jsdom 22 in case the noframes element is permitted, thanks @​leeN
• Fixed a typo with shadowrootmod which should be shadowrootmode, thanks @​masatokinugawa

v3.0.3: DOMPurify 3.0.3

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• Added new TRUSTED_TYPES_POLICY configuration option, thanks @​dejang
• Added feDropShadow to the SVG filter allow-list, thanks @​SelfMadeSystem

v3.0.2: DOMPurify 3.0.2

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• Fixed an issue with ALLOWED_URI_REGEXP not being reset, thanks @​mukilane
• Added mprescripts tag to allowed MathML elements, thanks @​duyhai94
• Added SMS URI scheme to allowed URI schemes, tanks @​Kiwka
• Updated supported browser versions for nicer code and smaller size, thanks @​buzinas

v3.0.1: DOMPurify 3.0.1

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• Fixed a problem with improper reset of custom HTML options, thanks @​ammaraskar

v3.0.0: DOMPurify 3.0.0

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• Removed all code that is for MSIE-only
• Removed all tests that are for MSIE-only
• Modified documentation to reflect new state of MSIE support
• Added support for ALLOW_SELF_CLOSE_IN_ATTR flag, thanks @​edg2s @​AndreVirtimo
• Added better support for shadowrootmode, thanks @​mfreed7

NOTE Please use the 2.4.4 release if you still need MSIE support, 3.0.0 comes without the MSIE overhead

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