VULNERABILITY INTELLIGENCE

CVE-2026-88358

CVSS score6.5 MEDIUM
EPSS probability0.39%
CISA KEVNot currently listed
Published2026-09-24
Last modified2026-09-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-125

Primary references