CVE-2026-23957: high-severity vulnerability in lxsmnsyc seroval
seroval is vulnerable to Denial of Service via array serialization
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0
and below, overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to significantly increase processing time. This issue has been fixed in version 1.4.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
lxsmnsyc · serovalRelated CVEs — lxsmnsyc seroval
In the same product, most dangerous first.
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-2026-104845HIGHSeroval: Memory exhaustion via unchecked TypedArray length in JSON deserializationEPSS 0.4%