CVE-2026-116734
Low · 3.7CVSS
3.7
EPSS
0.4%
Published
Oct 26, 2026
CISA due date
—
The record
flatcc through 0.6.4 contains an integer overflow vulnerability in the check_header function of the FlatBuffers verifier because its overflow guard is dead code. On 32-bit builds, attackers can supply a crafted buffer offset that wraps the bounds check, causing an out-of-bounds read before the buffer and crashing the process.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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