CVE Catalog

CVE-2026-88358

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.33%

24th percentile - higher than 24% of all known CVEs

Summary

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.

Risk Assessment

This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.

Recommendation

Update simdjson to a version that includes a fix for this vulnerability.

Related vulnerabilities

Original NVD description (English 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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS