{"id":"CVE-2026-116580","state":"PUBLISHED","title":"Seroval: Deserialization invokes attacker-chosen callables: AsyncIteratorFactoryInstance calls source.on(listener) without type check","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.","publishedAt":"2026-10-26T20:35:49.975Z","updatedAt":"2026-10-26T20:35:49.975Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["lxsmnsyc seroval"],"affected":[{"vendor":"lxsmnsyc","product":"seroval","versions":[{"version":"< 1.6.8","status":"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"],"weaknesses":["CWE-502"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116580.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116580","state":"PUBLISHED","datePublished":"2026-10-26T20:35:49.975Z","dateUpdated":"2026-10-26T20:35:49.975Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-26T15:03:39.035Z"},"containers":{"cna":{"title":"Seroval: Deserialization invokes attacker-chosen callables: AsyncIteratorFactoryInstance calls source.on(listener) without type check","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"lxsmnsyc","product":"seroval","versions":[{"version":"< 1.6.8","status":"affected"}]}],"references":[{"url":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-7rv5-mrxv-xcr9","name":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-7rv5-mrxv-xcr9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/lxsmnsyc/seroval/commit/3edc78b495ea0d6bd498143e5b3e56996607c5f2","name":"https://github.com/lxsmnsyc/seroval/commit/3edc78b495ea0d6bd498143e5b3e56996607c5f2","tags":["x_refsource_MISC"]},{"url":"https://github.com/lxsmnsyc/seroval/commit/50926b3ee198fb757e6ce3aa70efeed38d931c8d","name":"https://github.com/lxsmnsyc/seroval/commit/50926b3ee198fb757e6ce3aa70efeed38d931c8d","tags":["x_refsource_MISC"]},{"url":"https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8","name":"https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"CWE-502: Deserialization of Untrusted Data","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-26T20:35:49.975Z"},"source":{"advisory":"GHSA-7rv5-mrxv-xcr9","discovery":"UNKNOWN"}}}}}