Vulnerability in ggml-org llama.cpp

[ Description ]Official description

llama.cpp b5854 before b11275 contains an integer overflow vulnerability in gguf_init_from_reader that bypasses the CVE-2025-53630 size check when padding near-SIZE_MAX tensor sizes. Attackers can supply a crafted GGUF file whose tensor size pads to zero, causing an undersized data blob and out-of-bounds reads by consumers.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/ggml-org/llama.cpp/blob/v0.5.0/ggml/src/gguf.cpp
• github.com/ggml-org/llama.cpp/commit/a6ea155d3d38b3f6f43d0c0dc29c2d592413ef44
• github.com/ggml-org/llama.cpp/issues/26978
• github.com/ggml-org/llama.cpp/pull/26979
• github.com/ggml-org/llama.cpp/releases/tag/b11275
• www.vulncheck.com/advisories/llama-cpp-b5854-before-b11275-integer-overflow-in-gguf-ini…