{"answers":{"affected":"2 open source packages ship an affected version, including seroval.","exploited":"There is no known exploitation of CVE-2026-116584 in the wild and no public exploit code.","fix":"Upgrade seroval to 1.6.8 or later.","what":"CVE-2026-116584 is a high-severity vulnerability in lxsmnsyc seroval, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116584 and fix it if it is affected.\n\nWhat it is: CVE-2026-116584 is a high-severity vulnerability in lxsmnsyc seroval, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116584 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- seroval (npm): affected from 1.4.1; fixed in 1.6.8\n- seroval (npm): affected from 1.4.1; 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-2026-116584/ (Markdown: https://insights.sbomify.com/CVE-2026-116584/index.md)","id":"CVE-2026-116584","markdown":"https://insights.sbomify.com/CVE-2026-116584/index.md","name":"CVE-2026-116584","record":{"aliases":["GHSA-wp97-x4hv-qvhp"],"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-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. From 1.4.1 until 1.6.8, fromJSON and fromCrossJSON do not require an array node's element list to be an actual array. A small crafted payload can supply an attacker-controlled length that determines memory allocation and decoder iterations independently of payload size, allowing an unauthenticated request to exhaust the process or block its thread. This issue is a residual bypass of the remediation for CVE-2026-23957. 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`/`fromCrossJSON` denial of service via unvalidated array node length","id":"CVE-2026-116584","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"Go JOSE: Panic during CBC-HMAC processing","id":"CVE-2026-116585"},"packages":[{"ecosystem":"npm","fixed":["1.6.8"],"introduced":["1.4.1"],"last_affected":[],"package":"seroval","purl":null,"source":"GHSA-wp97-x4hv-qvhp"},{"ecosystem":"npm","fixed":["1.6.8"],"introduced":["1.4.1"],"last_affected":[],"package":"seroval","purl":"pkg:npm/seroval","source":"GHSA-wp97-x4hv-qvhp"}],"prev":{"headline":"Seroval: Code injection through a typed array's own constructor property","id":"CVE-2026-116583"},"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-2026-116584/"}