Cloudanix VulnDB

CVE-2026-34159

Critical · 9.8

CVSS

9.8

EPSS

1.2%

Published

Apr 1, 2026

CISA due date

—

The record

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 packages

Ecosystem Package Introduced Fixed

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