{"schema":"threatline.record/2","record":{"id":"CVE-2026-116583","aliases":["GHSA-f86p-h4j2-7qgj"],"summary":"Seroval: Code injection through a typed array's own constructor property","details":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. From 1.6.0 until 1.6.11, the JavaScript-output APIs derive a typed array's constructor name from a property on the value that can be replaced by an own constructor property. When application code copies untrusted properties onto a typed array and then passes it to serialize, serializeAsync, crossSerialize, crossSerializeAsync, crossSerializeStream, Serializer, or compileJSON, the attacker-controlled name is written as executable JavaScript and can run in the page receiving the output. This issue is fixed in version 1.6.11.","categories":["Unclassified"],"product":"seroval","vendor":"lxsmnsyc","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116583","source_modified_at":"2026-10-26T20:49:35.952Z","fetched_at":"2026-10-26T23:45:56.352924Z","product":"seroval","vendor":"lxsmnsyc","versions":[{"version":">= 1.6.0, < 1.6.11","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T20:49:35.952Z","modified_at":"2026-10-26T20:49:35.952Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116583","fetched_at":"2026-10-26T23:45:56.352924Z","source_modified_at":"2026-10-26T20:49:35.952Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-f86p-h4j2-7qgj","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/lxsmnsyc/seroval/commit/1313ebbad9687bc0245e08bfd576376e57e0e5c1","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.11","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-26T20:49:35.952Z","content_hash":"421b6034c8d4328cd50037705216a319c037c3b018ae6a345ef72e7d702bd3bc"}}