{"schema_version":1,"title":"Mruby vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Mruby: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-79590, was published on 10 September 2026. Nothing was published in the last eight weeks.","url":"https://junglewise.ai/threats/technologies/mruby","json_url":"https://junglewise.ai/threats/technologies/mruby.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/mruby","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":2,"last_365_days":3},"latest":[{"cve":"CVE-2026-79590","cvss":6.5,"epss":0.0037,"slug":"cve-2026-79590-mruby-null-pointer-dereference-in-prism-parser","title":"mruby NULL pointer dereference in Prism parser","severity":"medium","exploited":false,"published_at":"2026-09-10T22:17:00.267+00:00","url":"https://junglewise.ai/threats/cve-2026-79590-mruby-null-pointer-dereference-in-prism-parser"},{"cve":"CVE-2022-4996","cvss":5.3,"epss":0.0064,"slug":"cve-2022-4996-mruby-floating-point-comparison-flaw-in-bigint-division","title":"mruby floating point comparison flaw in bigint division","severity":"medium","exploited":false,"published_at":"2026-08-20T00:16:50.98+00:00","url":"https://junglewise.ai/threats/cve-2022-4996-mruby-floating-point-comparison-flaw-in-bigint-division"},{"cve":"CVE-2025-13120","cvss":5.3,"epss":0.0016,"slug":"cve-2025-13120-a-vulnerability-has-been-found-in-mruby-up-to-3-4-0-this","title":"A vulnerability has been found in mruby up to 3.4.0. This vulnerability affects the function sort_cmp of the file…","severity":"medium","exploited":false,"published_at":"2025-11-13T16:15:51.1+00:00","url":"https://junglewise.ai/threats/cve-2025-13120-a-vulnerability-has-been-found-in-mruby-up-to-3-4-0-this"},{"cve":"CVE-2025-12875","cvss":5.3,"epss":0.0017,"slug":"cve-2025-12875-a-weakness-has-been-identified-in-mruby-3-4-0-this-vulnerability","title":"A weakness has been identified in mruby 3.4.0. This vulnerability affects the function ary_fill_exec of the file…","severity":"medium","exploited":false,"published_at":"2025-11-07T21:15:40.557+00:00","url":"https://junglewise.ai/threats/cve-2025-12875-a-weakness-has-been-identified-in-mruby-3-4-0-this-vulnerability"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":1},{"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":1},{"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},{"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":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Mruby","slug":"mruby","vendor":{"hub":true,"name":"Mruby","slug":"mruby","url":"https://junglewise.ai/threats/vendors/mruby"},"aliases":[],"category":"library","description":"Lightweight embedded Ruby interpreter implementation designed for embedded systems and applications.","url":"https://junglewise.ai/threats/technologies/mruby"},"most_severe":[{"cve":"CVE-2026-79590","cvss":6.5,"epss":0.0037,"slug":"cve-2026-79590-mruby-null-pointer-dereference-in-prism-parser","title":"mruby NULL pointer dereference in Prism parser","severity":"medium","exploited":false,"published_at":"2026-09-10T22:17:00.267+00:00","url":"https://junglewise.ai/threats/cve-2026-79590-mruby-null-pointer-dereference-in-prism-parser"},{"cve":"CVE-2022-4996","cvss":5.3,"epss":0.0064,"slug":"cve-2022-4996-mruby-floating-point-comparison-flaw-in-bigint-division","title":"mruby floating point comparison flaw in bigint division","severity":"medium","exploited":false,"published_at":"2026-08-20T00:16:50.98+00:00","url":"https://junglewise.ai/threats/cve-2022-4996-mruby-floating-point-comparison-flaw-in-bigint-division"},{"cve":"CVE-2025-12875","cvss":5.3,"epss":0.0017,"slug":"cve-2025-12875-a-weakness-has-been-identified-in-mruby-3-4-0-this-vulnerability","title":"A weakness has been identified in mruby 3.4.0. This vulnerability affects the function ary_fill_exec of the file…","severity":"medium","exploited":false,"published_at":"2025-11-07T21:15:40.557+00:00","url":"https://junglewise.ai/threats/cve-2025-12875-a-weakness-has-been-identified-in-mruby-3-4-0-this-vulnerability"},{"cve":"CVE-2025-13120","cvss":5.3,"epss":0.0016,"slug":"cve-2025-13120-a-vulnerability-has-been-found-in-mruby-up-to-3-4-0-this","title":"A vulnerability has been found in mruby up to 3.4.0. This vulnerability affects the function sort_cmp of the file…","severity":"medium","exploited":false,"published_at":"2025-11-13T16:15:51.1+00:00","url":"https://junglewise.ai/threats/cve-2025-13120-a-vulnerability-has-been-found-in-mruby-up-to-3-4-0-this"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}