Vulnerability in Ggml-Org Llama.cpp
CVE-2026-119052
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/ggml-org/llama.cpp/pull/31204 (issue-tracking, patch)
- github.com/ggml-org/llama.cpp/commit/7ecb57f7adbea2928aa468ad2aecf05b10725ad4 (patch)
- github.com/ggml-org/llama.cpp (product)
- github.com/ggml-org/llama.cpp/releases/tag/b11935 (release-notes)
- github.com/ggml-org/llama.cpp/blob/8542e94350f0ade01644db6f1d1520da3814dafd/ggm… (technical-description)
- www.vulncheck.com/advisories/llama-cpp-b2877-before-b11935-ggml-rpc-server-dos-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119052?
- CVE-2026-119052 is a high-severity vulnerability in Ggml-Org Llama.cpp, classified under CWE-248. CVSS score: 7.5/10. Published 2026-10-29.
- How severe is CVE-2026-119052?
- High severity. CVSS v3 base score is 7.5 out of 10.