CVE-2026-33298
Fixed in a distro release EPSS <1%CVSS 7.8
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.
Products: ggml-org llama.cpp
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 14 | llama.cpp | 7965+dfsg-1 |
| Ubuntu 25.10 | llama.cpp | no fix |
| Ubuntu 26.04 LTS | llama.cpp | no fix |
| Ubuntu 26.10 | llama.cpp | no fix |