CVE-2026-33298

High

Description

llama.cpp is an inference of several LLM models in C/C++. Prior to b7824, an integer overflow vulnerability in the `ggml_nbytes` function allows an attacker to bypass memory validation by crafting a GGUF file with specific tensor dimensions. This causes `ggml_nbytes` to return a significantly smaller size than required (e.g., 4MB instead of Exabytes), leading to a heap-based buffer overflow when the application subsequently processes the tensor. This vulnerability allows potential Remote Code Execution (RCE) via memory corruption. b7824 contains a fix.

SeverityHigh
CVSS7.8
Exploit probability—
ProductGgml Llama.cpp
PublishedMar 24, 2026
First seenMar 24, 2026

How to fix

Update
  • ggml llama.cppb7824 or later

Affected products

ProductAffected versionsFixed in
ggml llama.cppv < b7824b7824

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