This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-88358 →

UBUNTU-CVE-2026-88358

simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whos...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV