CVE-2026-88358 Affecting simdjson package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SIMDJSON-20138322
  • published25 Sept 2026
  • disclosed24 Sept 2026

Introduced: 24 Sep 2026

NewCVE-2026-88358  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest simdjson.

NVD Description

Note: Versions mentioned in the description apply only to the upstream simdjson package and not the simdjson package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.