CVE-2026-119052

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CVE-2026-119052

Summary: llama.cpp b2877 before b11935 ggml-rpc Server DoS via Oversized recv_msg Length

Details: llama.cpp b2877 before b11935 contains an uncaught exception vulnerability in the ggml-rpc server that allows unauthenticated remote attackers to crash the rpc-server by sending oversized message lengths. After the HELLO handshake, attackers can send a command such as SET_TENSOR with a length above std::vector::max_size(), triggering an uncaught std::length_error that aborts the process and denies service to all clients.

References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119052.json, https://github.com/ggml-org/llama.cpp/releases/tag/b11935, https://nvd.nist.gov/vuln/detail/CVE-2026-119052, https://www.vulncheck.com/advisories/llama-cpp-b2877-before-b11935-ggml-rpc-server-dos-via-oversized-recv-msg-length, https://github.com/ggml-org/llama.cpp/commit/7ecb57f7adbea2928aa468ad2aecf05b10725ad4, https://github.com/ggml-org/llama.cpp/pull/31204, https://github.com/ggml-org/llama.cpp, https://github.com/ggml-org/llama.cpp/blob/8542e94350f0ade01644db6f1d1520da3814dafd/ggml/src/ggml-rpc/ggml-rpc.cpp#L344-L356