cvedb.io
CVE-2026-34159
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-04-01T18:16:29.687 · Last modified 2026-06-17T10:38:35.200

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b8492, the RPC backend's deserialize_tensor() skips all bounds validation when a tensor's buffer field is 0. An unauthenticated attacker can read and write arbitrary process memory via crafted GRAPH_COMPUTE messages. Combined with pointer leaks from ALLOC_BUFFER/BUFFER_GET_BASE, this gives full ASLR bypass and remote code execution. No authentication required, just TCP access to the RPC server port. This issue has been patched in version b8492.

Affected products

ggml — llama.cpp

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.