{"id":"CVE-2023-30300","aliases":["DEBIAN-CVE-2023-30300","EUVD-2023-34723","GHSA-pm5m-2p5c-6mv8","UBUNTU-CVE-2023-30300"],"status":"published","title":"An issue in the component hang.wasm of WebAssembly 1.0 causes an infinite loop.","description":"An issue in the component hang.wasm of WebAssembly 1.0 causes an infinite loop.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00284,"percentile":0.21196,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-835"],"published":"2023-05-03T00:00:00Z","modified":"2026-10-28T02:30:26Z","fixes":[{"ecosystem":"Debian:13","package":"wabt","fixed_in":["1.0.33-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"wabt","fixed_in":["1.0.33-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"wabt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.32-1","1.0.33-1","1.0.34+dsfg+~cs1.0.32-1","1.0.34+dsfg2+~cs1.0.32-1","1.0.34+dsfg2+~cs1.0.32-2","1.0.34+dsfg2+~cs1.0.32-3","1.0.34+dsfg2+~cs1.0.32-4","1.0.34-1","1.0.36+dfsg+~cs1.0.36-1","1.0.36+dfsg+~cs1.0.36-2","1.0.41+dfsg+~cs1.0.39-1","1.0.41+dfsg+~cs1.0.39-2","1.0.42+dfsg+~cs1.0.39-1","1.0.42+dfsg+~cs1.0.39-2"]},{"source":"osv","ecosystem":"Debian:13","package":"wabt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.33-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"wabt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.33-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"wabt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.11-1","1.0.12-1","1.0.13-1","1.0.13-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"wabt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.20-1","1.0.24-1","1.0.24-2","1.0.25-1","1.0.26-1","1.0.27-1"]}],"products":[{"vendor":"w3","product":"webassembly"}],"references":[{"url":"https://github.com/WebAssembly/wabt/issues/2180","tags":["x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OSFFCKXUQ5PAC5UVXY7N6HEHVQ3AC2RG/","tags":["vendor-advisory","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30300","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OSFFCKXUQ5PAC5UVXY7N6HEHVQ3AC2RG"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OSFFCKXUQ5PAC5UVXY7N6HEHVQ3AC2RG"},{"url":"https://github.com/advisories/GHSA-pm5m-2p5c-6mv8"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30300.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-30300","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-30300","tags":["report"]},{"url":"https://github.com/WebAssembly/wabt/pull/2183","tags":["report"]},{"url":"https://github.com/WebAssembly/wabt/commit/2d77bda4034a719fe1a2eaf1d51593eb351ecb4c","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-30300","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-30300","description":"An issue in the component hang.wasm of WebAssembly 1.0 causes an infinite loop.","status":"published","published":"2023-05-03T00:00:00Z","modified":"2025-01-30T20:57:27.43Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:35:22.309324Z"}],"euvd":[{"id":"EUVD-2023-34723","description":"An issue in the component hang.wasm of WebAssembly 1.0 causes an infinite loop.","status":"published","published":"2023-05-03T00:00:00Z","modified":"2025-01-30T20:57:27Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:08.578338Z"}],"ghsa":[{"id":"GHSA-pm5m-2p5c-6mv8","title":"An issue in the component hang.wasm of WebAssembly 1.0 causes an infinite loop.","description":"An issue in the component hang.wasm of WebAssembly 1.0 causes an infinite 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loop.","status":"published","published":"2023-05-03T20:15:00Z","modified":"2025-10-24T05:01:55Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:20.997471Z"}]}}