{"schema_version":1,"title":"happy-dom (npm) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 5 vulnerabilities in happy-dom (npm): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-34226, was published on 27 March 2026.","url":"https://junglewise.ai/threats/technologies/happy-dom","json_url":"https://junglewise.ai/threats/technologies/happy-dom.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/happy-dom","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":5,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":4},"latest":[{"cve":"CVE-2026-34226","cvss":7.5,"epss":0.0059,"slug":"cve-2026-34226-capricorn86-happy-dom-cookie-leakage-in-fetch-requests","title":"capricorn86 Happy DOM cookie leakage in fetch requests","severity":"high","exploited":false,"published_at":"2026-03-27T22:16:23.113+00:00","url":"https://junglewise.ai/threats/cve-2026-34226-capricorn86-happy-dom-cookie-leakage-in-fetch-requests"},{"cve":"CVE-2026-33943","cvss":8.8,"epss":0.0097,"slug":"cve-2026-33943-capricorn86-happy-dom-code-injection-in-ecmascriptmodulecompiler","title":"capricorn86 Happy DOM code injection in ECMAScriptModuleCompiler","severity":"high","exploited":false,"published_at":"2026-03-27T22:16:21.393+00:00","url":"https://junglewise.ai/threats/cve-2026-33943-capricorn86-happy-dom-code-injection-in-ecmascriptmodulecompiler"},{"cve":"CVE-2025-62410","cvss":4,"epss":0.0035,"slug":"cve-2025-62410-happy-dom-prototype-pollution-allowing-arbitrary-code-execution","title":"happy-dom prototype pollution allowing arbitrary code execution","severity":"medium","exploited":false,"published_at":"2025-10-15T20:29:04+00:00","url":"https://junglewise.ai/threats/cve-2025-62410-happy-dom-prototype-pollution-allowing-arbitrary-code-execution"},{"cve":"CVE-2025-61927","cvss":4,"epss":0.0064,"slug":"cve-2025-61927-happy-dom-vm-context-escape-leading-to-remote-code-execution","title":"Happy DOM VM Context Escape leading to Remote Code Execution","severity":"medium","exploited":false,"published_at":"2025-10-10T23:46:42+00:00","url":"https://junglewise.ai/threats/cve-2025-61927-happy-dom-vm-context-escape-leading-to-remote-code-execution"},{"cve":"CVE-2024-51757","cvss":4,"epss":0.0077,"slug":"cve-2024-51757-happy-dom-server-side-code-execution-via-script-tag","title":"happy-dom server-side code execution via script tag","severity":"medium","exploited":false,"published_at":"2024-11-06T15:27:50+00:00","url":"https://junglewise.ai/threats/cve-2024-51757-happy-dom-server-side-code-execution-via-script-tag"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"flowise (npm)","slug":"flowise","vulnerabilities":156,"url":"https://junglewise.ai/threats/technologies/flowise"},{"name":"vm2 (npm)","slug":"vm2","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/vm2"},{"name":"@budibase/server (npm)","slug":"budibase-server","vulnerabilities":61,"url":"https://junglewise.ai/threats/technologies/budibase-server"},{"name":"directus (npm)","slug":"directus","vulnerabilities":60,"url":"https://junglewise.ai/threats/technologies/directus"},{"name":"nocodb (npm)","slug":"nocodb","vulnerabilities":55,"url":"https://junglewise.ai/threats/technologies/nocodb"},{"name":"hono (npm)","slug":"hono","vulnerabilities":54,"url":"https://junglewise.ai/threats/technologies/hono"},{"name":"parse-server (npm)","slug":"parse-server","vulnerabilities":42,"url":"https://junglewise.ai/threats/technologies/parse-server"},{"name":"dompurify (npm)","slug":"dompurify","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/dompurify"},{"name":"ghost (npm)","slug":"ghost","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/ghost"},{"name":"flowise-components (npm)","slug":"flowise-components","vulnerabilities":35,"url":"https://junglewise.ai/threats/technologies/flowise-components"},{"name":"astro (npm)","slug":"astro","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/astro"},{"name":"@anthropic-ai/claude-code (npm)","slug":"anthropic-ai-claude-code","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/anthropic-ai-claude-code"}],"technology":{"hub":true,"name":"happy-dom (npm)","slug":"happy-dom","vendor":{"name":"npm","slug":"npm","url":"https://junglewise.ai/threats/vendors/npm"},"aliases":[],"homepage":"https://www.npmjs.com/package/happy-dom","repo_url":"https://github.com/capricorn86/happy-dom","description":"A JavaScript implementation of a web browser without a graphical user interface, used for testing and web scraping.","url":"https://junglewise.ai/threats/technologies/happy-dom"},"most_severe":[{"cve":"CVE-2026-33943","cvss":8.8,"epss":0.0097,"slug":"cve-2026-33943-capricorn86-happy-dom-code-injection-in-ecmascriptmodulecompiler","title":"capricorn86 Happy DOM code injection in ECMAScriptModuleCompiler","severity":"high","exploited":false,"published_at":"2026-03-27T22:16:21.393+00:00","url":"https://junglewise.ai/threats/cve-2026-33943-capricorn86-happy-dom-code-injection-in-ecmascriptmodulecompiler"},{"cve":"CVE-2026-34226","cvss":7.5,"epss":0.0059,"slug":"cve-2026-34226-capricorn86-happy-dom-cookie-leakage-in-fetch-requests","title":"capricorn86 Happy DOM cookie leakage in fetch requests","severity":"high","exploited":false,"published_at":"2026-03-27T22:16:23.113+00:00","url":"https://junglewise.ai/threats/cve-2026-34226-capricorn86-happy-dom-cookie-leakage-in-fetch-requests"},{"cve":"CVE-2024-51757","cvss":4,"epss":0.0077,"slug":"cve-2024-51757-happy-dom-server-side-code-execution-via-script-tag","title":"happy-dom server-side code execution via script tag","severity":"medium","exploited":false,"published_at":"2024-11-06T15:27:50+00:00","url":"https://junglewise.ai/threats/cve-2024-51757-happy-dom-server-side-code-execution-via-script-tag"},{"cve":"CVE-2025-61927","cvss":4,"epss":0.0064,"slug":"cve-2025-61927-happy-dom-vm-context-escape-leading-to-remote-code-execution","title":"Happy DOM VM Context Escape leading to Remote Code Execution","severity":"medium","exploited":false,"published_at":"2025-10-10T23:46:42+00:00","url":"https://junglewise.ai/threats/cve-2025-61927-happy-dom-vm-context-escape-leading-to-remote-code-execution"},{"cve":"CVE-2025-62410","cvss":4,"epss":0.0035,"slug":"cve-2025-62410-happy-dom-prototype-pollution-allowing-arbitrary-code-execution","title":"happy-dom prototype pollution allowing arbitrary code execution","severity":"medium","exploited":false,"published_at":"2025-10-15T20:29:04+00:00","url":"https://junglewise.ai/threats/cve-2025-62410-happy-dom-prototype-pollution-allowing-arbitrary-code-execution"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}