{"id":"CVE-2026-116580","aliases":[],"title":"Seroval: Deserialization invokes attacker-chosen callables: AsyncIteratorFactoryInstance calls source.on(listener) without type check","titleSource":"GitHub_M","descriptionSource":"GitHub_M","products":[{"vendor":"lxsmnsyc","name":"seroval","platforms":[],"versions":[{"version":"< 1.6.8","status":"affected"}],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-116580"}],"remediation":[],"description":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON rebuilds an AsyncIteratorFactoryInstance by calling source.on(listener) without requiring source to be a genuine internal stream. With untrusted Seroval input and an application plugin that returns a callable value or an object exposing an on method, a crafted node can reuse an identifier so the deserializer invokes the plugin-produced value. This is an incomplete-fix variant of CVE-2026-59940. The resulting confidentiality, integrity, or availability impact depends on the behavior exposed by the application plugin. This issue is fixed in version 1.6.8.","severity":"high","score":7.3,"published":"2026-10-26T20:35:49.975Z","modified":"2026-10-26T20:35:49.975Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-7rv5-mrxv-xcr9","https://github.com/lxsmnsyc/seroval/commit/3edc78b495ea0d6bd498143e5b3e56996607c5f2","https://github.com/lxsmnsyc/seroval/commit/50926b3ee198fb757e6ce3aa70efeed38d931c8d","https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8"],"sources":[{"name":"CVE","id":"CVE-2026-116580","modified":"2026-10-26T20:35:49.975Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116580"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T21:40:30.742Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}