{"id":"CVE-2026-116581","state":"PUBLISHED","title":"Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)","description":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON and fromCrossJSON do not validate a sequence node's done index. A crafted done index can create an iterator that never finishes when application code consumes it to completion. An unauthenticated request to a service that deserializes untrusted input can therefore block the event loop, exhaust process memory, or make the service unavailable. This issue is fixed in version 1.6.8.","publishedAt":"2026-10-26T20:41:52.905Z","updatedAt":"2026-10-31T01:49:33.208Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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-97r2-qh9m-474h","https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728","https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8"],"weaknesses":["CWE-835","CWE-1284"],"ingestedAt":"2026-10-31T01:58:06.173Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116581.json","commit":"c1b26f6d5ca943a34a36afcad4120718b19dc19d","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116581","state":"PUBLISHED","datePublished":"2026-10-26T20:41:52.905Z","dateUpdated":"2026-10-31T01:49:33.208Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-26T15:03:39.035Z"},"containers":{"cna":{"title":"Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)","descriptions":[{"lang":"en","value":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON and fromCrossJSON do not validate a sequence node's done index. A crafted done index can create an iterator that never finishes when application code consumes it to completion. An unauthenticated request to a service that deserializes untrusted input can therefore block the event loop, exhaust process memory, or make the service unavailable. 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-97r2-qh9m-474h","name":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-97r2-qh9m-474h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728","name":"https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728","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":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-835","lang":"en","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1284","lang":"en","description":"CWE-1284: Improper Validation of Specified Quantity in Input","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-26T20:41:52.905Z"},"source":{"advisory":"GHSA-97r2-qh9m-474h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-31T01:49:19.184494Z","id":"CVE-2026-116581","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-31T01:49:33.208Z"}}]}}}