build(deps): bump dompurify from 3.3.3 to 3.4.3

[dependabot]

Bumps dompurify from 3.3.3 to 3.4.3.

Release notes

Sourced from dompurify's releases.

DOMPurify 3.4.3

• 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

DOMPurify 3.4.2

• 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

DOMPurify 3.4.1

• 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

DOMPurify 3.4.0

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

Commits

• 520edb0 release: 3.4.3 (#1352)
• 6f67fd3 Sync/3.4.2 (#1322)
• 5b0cdbb chore: merge main into 3.x for 3.4.1 release (#1301)
• 09f5911 test: added three more browsers to test setup (OSX, mobile)
• 5b16e0b Getting 3.x branch ready for 3.4.0 release (#1250)
• See full diff in compare view

Install script changes

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[github-actions]

## 🔦 Lighthouse Benchmark

Tested: https://ks-dependabot-npm-and-yarn-dompur-docs.kestra-io.workers.dev on 2026-05-13 16:46 UTC
No baseline available — scores will appear after the first merge to main

Scores (0–100, higher is better)

Page	Performance	Accessibility	Best Practices	SEO
Home	64	82	59	92
Pricing	96	91	59	100
Enterprise	95	82	59	100
Cloud	89	86	59	100
About Us	98	91	59	100
Docs Landing	95	88	59	92
Contribute to Kestra (simple docs)	94	87	59	92
Flow (full featured docs)	91	90	59	92
Blog Index	65	90	59	100
Blog Post (sample)	85	87	59	100
VS Page (sample)	96	91	59	100
Plugins Landing	87	80	59	92
Plugin Page (sample)	91	87	59	100
Plugin Debug Page (sample)	95	87	59	100
Plugin Debug Return Page (sample)	94	87	59	100
Blueprints Landing	86	80	59	92
Blueprint Audit Logs CSV Export	66	86	59	100

Core Web Vitals (lower is better)

Page	LCP	FCP	TBT	CLS	Speed Index
Home	1.14 s	0.75 s	602 ms	0.000	4.94 s
Pricing	1.07 s	0.60 s	130 ms	0.000	0.89 s
Enterprise	1.15 s	0.54 s	137 ms	0.003	0.77 s
Cloud	2.08 s	0.52 s	103 ms	0.000	0.77 s
About Us	1.02 s	0.64 s	58 ms	0.000	1.11 s
Docs Landing	0.89 s	0.65 s	164 ms	0.000	1.05 s
Contribute to Kestra (simple docs)	0.95 s	0.58 s	177 ms	0.000	0.74 s
Flow (full featured docs)	0.92 s	0.60 s	222 ms	0.000	1.21 s
Blog Index	11.29 s	0.52 s	81 ms	0.000	22.75 s
Blog Post (sample)	2.69 s	0.52 s	91 ms	0.000	0.70 s
VS Page (sample)	1.04 s	0.62 s	139 ms	0.000	0.70 s
Plugins Landing	1.05 s	0.55 s	171 ms	0.000	2.74 s
Plugin Page (sample)	1.52 s	0.58 s	68 ms	0.051	1.91 s
Plugin Debug Page (sample)	0.88 s	0.51 s	110 ms	0.001	1.94 s
Plugin Debug Return Page (sample)	1.04 s	0.56 s	97 ms	0.025	1.93 s
Blueprints Landing	1.81 s	1.02 s	56 ms	0.000	2.26 s
Blueprint Audit Logs CSV Export	1.17 s	0.60 s	218 ms	0.485	2.01 s

Legend

🟢 improved  ·  🔻 regressed  ·  (blank) no significant change
Score threshold: ±10 pts  ·  Metric threshold: ±30% of baseline

[dependabot]

Superseded by #4815.