{"answers":{"affected":"2 open source packages ship an affected version, including seroval.","exploited":"There is no known exploitation of CVE-2026-116581 in the wild and no public exploit code.","fix":"Upgrade seroval to 1.6.8 or later.","what":"CVE-2026-116581 is a high-severity vulnerability in lxsmnsyc seroval, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116581 and fix it if it is affected.\n\nWhat it is: CVE-2026-116581 is a high-severity vulnerability in lxsmnsyc seroval, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116581 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- seroval (npm): affected all versions; fixed in 1.6.8\n- seroval (npm): affected all versions; fixed in 1.6.8\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-116581/ (Markdown: https://insights.sbomify.com/CVE-2026-116581/index.md)","id":"CVE-2026-116581","markdown":"https://insights.sbomify.com/CVE-2026-116581/index.md","name":"CVE-2026-116581","record":{"aliases":["GHSA-97r2-qh9m-474h"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"},{"id":"CWE-1284","name":"Improper Validation of Specified Quantity in Input"}],"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)","id":"CVE-2026-116581","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Seroval: Script injection through RegExp sources in serialized output","id":"CVE-2026-116582"},"packages":[{"ecosystem":"npm","fixed":["1.6.8"],"introduced":["0"],"last_affected":[],"package":"seroval","purl":null,"source":"GHSA-97r2-qh9m-474h"},{"ecosystem":"npm","fixed":["1.6.8"],"introduced":["0"],"last_affected":[],"package":"seroval","purl":"pkg:npm/seroval","source":"GHSA-97r2-qh9m-474h"}],"prev":{"headline":"Seroval: Deserialization invokes attacker-chosen callables: AsyncIteratorFactoryInstance calls source.on(listener) without type check","id":"CVE-2026-116580"},"products":["seroval"],"published":"2026-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-26","vendors":["lxsmnsyc"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116581/"}