CVE-2026-116584: fallo de gravedad alta en lxsmnsyc seroval
Seroval `fromJSON`/`fromCrossJSON` denial of service via unvalidated array node length
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
lxsmnsyc · serovalCVEs relacionadas — lxsmnsyc seroval
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-59940CRITICALSeroval: `seroval.fromJSON()` Promise resolver type confusion invokes attacker-controlled methods during deserializationEPSS 0.8%CVE-2026-23737HIGHseroval Affected by Remote Code Execution via JSON DeserializationEPSS 0.6%CVE-2026-23956HIGHseroval affected by Denial of Service via RegExp serializationEPSS 0.5%CVE-2026-116581HIGHSeroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)EPSS 0.5%CVE-2026-24006HIGHSeroval affected by Denial of Service via Deeply Nested ObjectsEPSS 0.4%CVE-2026-23957HIGHseroval is vulnerable to Denial of Service via array serializationEPSS 0.4%