{"schema_version":1,"title":"Immutable.js vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Immutable.js: 0 in the last 7 days and 2 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-59879, was published on 8 July 2026.","url":"https://junglewise.ai/threats/technologies/immutable-js","json_url":"https://junglewise.ai/threats/technologies/immutable-js.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/immutable-js","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":3,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":2,"last_365_days":3},"latest":[{"cve":"CVE-2026-59879","cvss":7.5,"epss":0.0067,"slug":"cve-2026-59879-immutable-js-denial-of-service-via-integer-overflow-in-list","title":"Immutable.js denial of service via integer overflow in List component","severity":"high","exploited":false,"published_at":"2026-07-08T17:17:26.37+00:00","url":"https://junglewise.ai/threats/cve-2026-59879-immutable-js-denial-of-service-via-integer-overflow-in-list"},{"cve":"CVE-2026-59880","cvss":4,"epss":0.0067,"slug":"cve-2026-59880-immutable-js-denial-of-service-via-hash-collision-in-map-and-set","title":"Immutable.js denial of service via hash collision in Map and Set","severity":"high","exploited":false,"published_at":"2026-07-08T16:16:34.517+00:00","url":"https://junglewise.ai/threats/cve-2026-59880-immutable-js-denial-of-service-via-hash-collision-in-map-and-set"},{"cve":"CVE-2026-29063","cvss":9.8,"epss":0.0124,"slug":"cve-2026-29063-immutable-js-prototype-pollution-in-merge-and-map-apis","title":"Immutable.js Prototype Pollution in merge and Map APIs","severity":"critical","exploited":false,"published_at":"2026-03-06T19:16:21.557+00:00","url":"https://junglewise.ai/threats/cve-2026-29063-immutable-js-prototype-pollution-in-merge-and-map-apis"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":2},{"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}],"related":[],"technology":{"hub":true,"name":"Immutable.js","slug":"immutable-js","vendor":{"name":"Immutable.js","slug":"immutable-js","url":"https://junglewise.ai/threats/vendors/immutable-js"},"aliases":[],"category":"library","homepage":"https://immutable-js.com/","repo_url":"https://github.com/immutable-js/immutable-js","description":"Immutable.js provides persistent immutable data structures for JavaScript, including List, Stack, Map, OrderedMap, Set, OrderedSet, and Record.","url":"https://junglewise.ai/threats/technologies/immutable-js"},"most_severe":[{"cve":"CVE-2026-29063","cvss":9.8,"epss":0.0124,"slug":"cve-2026-29063-immutable-js-prototype-pollution-in-merge-and-map-apis","title":"Immutable.js Prototype Pollution in merge and Map APIs","severity":"critical","exploited":false,"published_at":"2026-03-06T19:16:21.557+00:00","url":"https://junglewise.ai/threats/cve-2026-29063-immutable-js-prototype-pollution-in-merge-and-map-apis"},{"cve":"CVE-2026-59879","cvss":7.5,"epss":0.0067,"slug":"cve-2026-59879-immutable-js-denial-of-service-via-integer-overflow-in-list","title":"Immutable.js denial of service via integer overflow in List component","severity":"high","exploited":false,"published_at":"2026-07-08T17:17:26.37+00:00","url":"https://junglewise.ai/threats/cve-2026-59879-immutable-js-denial-of-service-via-integer-overflow-in-list"},{"cve":"CVE-2026-59880","cvss":4,"epss":0.0067,"slug":"cve-2026-59880-immutable-js-denial-of-service-via-hash-collision-in-map-and-set","title":"Immutable.js denial of service via hash collision in Map and Set","severity":"high","exploited":false,"published_at":"2026-07-08T16:16:34.517+00:00","url":"https://junglewise.ai/threats/cve-2026-59880-immutable-js-denial-of-service-via-hash-collision-in-map-and-set"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}