{"schema_version":1,"title":"Sveltejs Devalue vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 7 vulnerabilities in Sveltejs Devalue: 6 in the last 7 days and 7 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-123569, was published on 8 November 2026. 6 vulnerabilities in the last four weeks, up 500% on the four before (1).","url":"https://junglewise.ai/threats/technologies/sveltejs-devalue","json_url":"https://junglewise.ai/threats/technologies/sveltejs-devalue.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/sveltejs-devalue","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":false,"counts":{"high":6,"all_time":7,"critical":0,"exploited":0,"last_7_days":6,"last_30_days":6,"last_90_days":7,"last_365_days":7},"latest":[{"cve":"CVE-2026-123569","cvss":7.5,"slug":"cve-2026-123569-the-devalue-package-for-npm-before-5-6-3-can-consume-excessive","title":"devalue sparse array denial of service via CPU and memory exhaustion","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:49.673+00:00","url":"https://junglewise.ai/threats/cve-2026-123569-the-devalue-package-for-npm-before-5-6-3-can-consume-excessive"},{"cve":"CVE-2026-123568","cvss":4.4,"slug":"cve-2026-123568-sveltejs-devalue-before-5-6-3-contains-a-prototype-pollution","title":"Sveltejs devalue prototype pollution in uneval","severity":"medium","exploited":false,"published_at":"2026-11-08T02:16:49.513+00:00","url":"https://junglewise.ai/threats/cve-2026-123568-sveltejs-devalue-before-5-6-3-contains-a-prototype-pollution"},{"cve":"CVE-2026-123566","cvss":7.5,"slug":"cve-2026-123566-sveltejs-devalue-before-5-9-3-contains-a-denial-of-service","title":"Sveltejs devalue denial of service in uneval","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:49.197+00:00","url":"https://junglewise.ai/threats/cve-2026-123566-sveltejs-devalue-before-5-9-3-contains-a-denial-of-service"},{"cve":"CVE-2026-123565","cvss":7.5,"slug":"cve-2026-123565-sveltejs-devalue-before-5-9-3-contains-a-resource-exhaustion","title":"Sveltejs devalue resource exhaustion in uneval","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:49.04+00:00","url":"https://junglewise.ai/threats/cve-2026-123565-sveltejs-devalue-before-5-9-3-contains-a-resource-exhaustion"},{"cve":"CVE-2026-123564","cvss":7.5,"slug":"cve-2026-123564-sveltejs-devalue-from-1-0-0-before-5-9-3-contains-a-memory","title":"Sveltejs devalue memory exhaustion in uneval sparse arrays","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:48.877+00:00","url":"https://junglewise.ai/threats/cve-2026-123564-sveltejs-devalue-from-1-0-0-before-5-9-3-contains-a-memory"},{"cve":"CVE-2026-123562","cvss":7.5,"slug":"cve-2026-123562-devalue-sveltejs-devalue-5-8-0-before-5-9-3-contains-an","title":"devalue unhandled promise rejection in stringifyAsync","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:48.567+00:00","url":"https://junglewise.ai/threats/cve-2026-123562-devalue-sveltejs-devalue-5-8-0-before-5-9-3-contains-an"},{"cvss":4,"slug":"devalue-custom-arraybuffer-revivers-can-bypass-typed-array-allocation-ecd9322f","title":"devalue ArrayBuffer allocation bypass via custom reviver","severity":"high","exploited":false,"published_at":"2026-10-01T15:15:56+00:00","url":"https://junglewise.ai/threats/devalue-custom-arraybuffer-revivers-can-bypass-typed-array-allocation-ecd9322f"}],"weekly":[{"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":1},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":6},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Sveltejs Devalue","slug":"sveltejs-devalue","vendor":{"hub":true,"name":"Sveltejs","slug":"sveltejs","url":"https://junglewise.ai/threats/vendors/sveltejs"},"aliases":[],"category":"library","description":"JavaScript library for serializing and deserializing values to and from strings.","url":"https://junglewise.ai/threats/technologies/sveltejs-devalue"},"most_severe":[{"cve":"CVE-2026-123569","cvss":7.5,"slug":"cve-2026-123569-the-devalue-package-for-npm-before-5-6-3-can-consume-excessive","title":"devalue sparse array denial of service via CPU and memory exhaustion","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:49.673+00:00","url":"https://junglewise.ai/threats/cve-2026-123569-the-devalue-package-for-npm-before-5-6-3-can-consume-excessive"},{"cve":"CVE-2026-123566","cvss":7.5,"slug":"cve-2026-123566-sveltejs-devalue-before-5-9-3-contains-a-denial-of-service","title":"Sveltejs devalue denial of service in uneval","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:49.197+00:00","url":"https://junglewise.ai/threats/cve-2026-123566-sveltejs-devalue-before-5-9-3-contains-a-denial-of-service"},{"cve":"CVE-2026-123565","cvss":7.5,"slug":"cve-2026-123565-sveltejs-devalue-before-5-9-3-contains-a-resource-exhaustion","title":"Sveltejs devalue resource exhaustion in uneval","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:49.04+00:00","url":"https://junglewise.ai/threats/cve-2026-123565-sveltejs-devalue-before-5-9-3-contains-a-resource-exhaustion"},{"cve":"CVE-2026-123564","cvss":7.5,"slug":"cve-2026-123564-sveltejs-devalue-from-1-0-0-before-5-9-3-contains-a-memory","title":"Sveltejs devalue memory exhaustion in uneval sparse arrays","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:48.877+00:00","url":"https://junglewise.ai/threats/cve-2026-123564-sveltejs-devalue-from-1-0-0-before-5-9-3-contains-a-memory"},{"cve":"CVE-2026-123562","cvss":7.5,"slug":"cve-2026-123562-devalue-sveltejs-devalue-5-8-0-before-5-9-3-contains-an","title":"devalue unhandled promise rejection in stringifyAsync","severity":"high","exploited":false,"published_at":"2026-11-08T02:16:48.567+00:00","url":"https://junglewise.ai/threats/cve-2026-123562-devalue-sveltejs-devalue-5-8-0-before-5-9-3-contains-an"},{"cvss":4,"slug":"devalue-custom-arraybuffer-revivers-can-bypass-typed-array-allocation-ecd9322f","title":"devalue ArrayBuffer allocation bypass via custom reviver","severity":"high","exploited":false,"published_at":"2026-10-01T15:15:56+00:00","url":"https://junglewise.ai/threats/devalue-custom-arraybuffer-revivers-can-bypass-typed-array-allocation-ecd9322f"},{"cve":"CVE-2026-123568","cvss":4.4,"slug":"cve-2026-123568-sveltejs-devalue-before-5-6-3-contains-a-prototype-pollution","title":"Sveltejs devalue prototype pollution in uneval","severity":"medium","exploited":false,"published_at":"2026-11-08T02:16:49.513+00:00","url":"https://junglewise.ai/threats/cve-2026-123568-sveltejs-devalue-before-5-6-3-contains-a-prototype-pollution"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}