CVE WatchOct 26, 2026

CVE-2026-116581

Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJ

CVSS

7.5

High

EPSS

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KEV

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Exploit Today

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0-100

Published: Oct 26, 2026 · Last modified: Oct 26, 2026 · CWE-835 · CWE-1284

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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