CVE-2026-88344

Published: Sep 22, 2026Modified: Sep 24, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (3)

https://github.com/dvidelabs/flatcc/issues/384

Source: cve@mitre.org

https://github.com/jimjag/flatcc/commit/c1dcc8ecd1a74b1e9e724ec7dc98828a5c95528e

Source: cve@mitre.org

https://github.com/dvidelabs/flatcc/issues/384

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.