CVE-2026-88344
Severity CVSS v4.0:
Pending analysis
Type:
CWE-22
Path Traversal
Publication date:
22/09/2026
Last modified:
24/09/2026
Description
An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema buffer ends with a digit, the integer digit-scan loop in lex() advances past the end of the input buffer and dereferences the out-of-bounds pointer. A specially crafted schema can trigger a one-byte heap buffer over-read, resulting in application crash and denial of service.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH