CVE-2026-118375 llama.cpp b8841 before b11865 Stack-based Buffer Overflow via ggml-rpc RDMA rdma_recv()

Critical 9.2 Published 28 Oct 2026 Updated 28 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-118375?

CVE-2026-118375 is a critical vulnerability in ggml-org llama.cpp, published on 28 Oct 2026.

Official description

llama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function that allows unauthenticated peers to overflow the rpc-server stack. Attackers advertising RDMA capabilities in the HELLO message can send up to 256 KiB into a 1-byte stack variable in rpc_serve_client(), crashing the server or potentially executing code.

Weakness: CWE-787

Which versions are affected by CVE-2026-118375?

How do I fix CVE-2026-118375?

No fix has been published for CVE-2026-118375 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-118375 being exploited?

There is no known exploitation of CVE-2026-118375 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-118375, GHSA-pmf8-m38j-h768, UBUNTU-CVE-2026-118375.