vulnerability · Fri 02 Oct 2026 · 16:16 UTC
CVE-2026-104846: Seroval facilitates JS value stringification, including complex structures beyond
Filed UTCSource GTH ↗
Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. From 0.12.0 until 1.6.2, fromJSON deserialization of a fulfilled Promise control node can pass a plugin-produced callable-bearing thenable to a native Promise resolver. ECMAScript thenable assimilation then invokes the callable unexpectedly, allowing attacker-controlled JSON to trigger code in applications using plugin-capable Seroval releases. …
Signals
as the pipeline stamped them- High
- Critical vulnerability — CVSS 9.8
- What to do
- Critical severity — schedule an urgent patch.
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-104846 | — | 0.34% | NVD ↗ |
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