{"schema_version":1,"title":"WebAssembly vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in WebAssembly: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-90648, was published on 13 September 2026. Nothing was published in the last eight weeks. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/webassembly","json_url":"https://junglewise.ai/threats/vendors/webassembly.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/vendors/webassembly","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","thin":true,"counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":1,"last_365_days":4},"latest":[{"cve":"CVE-2026-90648","cvss":7.5,"epss":0.0019,"slug":"cve-2026-90648-webassembly-wabt-wasm2c-sandbox-escape-via-table-fli","title":"WebAssembly wabt wasm2c sandbox escape via table fli","severity":"info","exploited":false,"published_at":"2026-09-13T00:17:07.023+00:00","url":"https://junglewise.ai/threats/cve-2026-90648-webassembly-wabt-wasm2c-sandbox-escape-via-table-fli"},{"cve":"CVE-2026-8257","cvss":3.3,"epss":0.0001,"slug":"cve-2026-8257-webassembly-binaryen-reachable-assertion-in-bron-parser","title":"WebAssembly Binaryen reachable assertion in BrOn Parser","severity":"low","exploited":false,"published_at":"2026-05-11T02:16:27.09+00:00","url":"https://junglewise.ai/threats/cve-2026-8257-webassembly-binaryen-reachable-assertion-in-bron-parser"},{"cve":"CVE-2025-15412","cvss":5.3,"epss":0.0021,"slug":"cve-2025-15412-a-security-vulnerability-has-been-detected-in-webassembly-wabt-up","title":"A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function…","severity":"medium","exploited":false,"published_at":"2026-01-01T21:15:41.067+00:00","url":"https://junglewise.ai/threats/cve-2025-15412-a-security-vulnerability-has-been-detected-in-webassembly-wabt-up"},{"cve":"CVE-2025-15411","cvss":5.3,"epss":0.0021,"slug":"cve-2025-15411-a-weakness-has-been-identified-in-webassembly-wabt-up-to-1-0-39","title":"A weakness has been identified in WebAssembly wabt up to 1.0.39. This vulnerability affects the function…","severity":"medium","exploited":false,"published_at":"2026-01-01T20:15:40.64+00:00","url":"https://junglewise.ai/threats/cve-2025-15411-a-weakness-has-been-identified-in-webassembly-wabt-up-to-1-0-39"}],"vendor":{"hub":true,"name":"WebAssembly","slug":"webassembly","homepage":"https://webassembly.org/","description":"WebAssembly (Wasm) is a binary instruction format for a stack-based virtual machine designed as a portable compilation target for programming languages.","url":"https://junglewise.ai/threats/vendors/webassembly"},"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":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}],"most_severe":[{"cve":"CVE-2025-15412","cvss":5.3,"epss":0.0021,"slug":"cve-2025-15412-a-security-vulnerability-has-been-detected-in-webassembly-wabt-up","title":"A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function…","severity":"medium","exploited":false,"published_at":"2026-01-01T21:15:41.067+00:00","url":"https://junglewise.ai/threats/cve-2025-15412-a-security-vulnerability-has-been-detected-in-webassembly-wabt-up"},{"cve":"CVE-2025-15411","cvss":5.3,"epss":0.0021,"slug":"cve-2025-15411-a-weakness-has-been-identified-in-webassembly-wabt-up-to-1-0-39","title":"A weakness has been identified in WebAssembly wabt up to 1.0.39. This vulnerability affects the function…","severity":"medium","exploited":false,"published_at":"2026-01-01T20:15:40.64+00:00","url":"https://junglewise.ai/threats/cve-2025-15411-a-weakness-has-been-identified-in-webassembly-wabt-up-to-1-0-39"},{"cve":"CVE-2026-8257","cvss":3.3,"epss":0.0001,"slug":"cve-2026-8257-webassembly-binaryen-reachable-assertion-in-bron-parser","title":"WebAssembly Binaryen reachable assertion in BrOn Parser","severity":"low","exploited":false,"published_at":"2026-05-11T02:16:27.09+00:00","url":"https://junglewise.ai/threats/cve-2026-8257-webassembly-binaryen-reachable-assertion-in-bron-parser"},{"cve":"CVE-2026-90648","cvss":7.5,"epss":0.0019,"slug":"cve-2026-90648-webassembly-wabt-wasm2c-sandbox-escape-via-table-fli","title":"WebAssembly wabt wasm2c sandbox escape via table fli","severity":"info","exploited":false,"published_at":"2026-09-13T00:17:07.023+00:00","url":"https://junglewise.ai/threats/cve-2026-90648-webassembly-wabt-wasm2c-sandbox-escape-via-table-fli"}],"generated_at":"2026-11-09T03:07:00.176479+00:00","technologies":[{"name":"WebAssembly Wabt","slug":"wabt","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/wabt"}]}