{"id":"CVE-2026-116816","published":"2026-10-27T01:19:06.437","lastModified":"2026-10-27T01:19:06.437","description":"llama.cpp b5899 before b10261 contains a heap out-of-bounds write vulnerability in llm_tokenizer_plamo2::build that allows attackers to corrupt heap memory via crafted GGUF models. Attackers can supply BYTE-typed token text like <0x-1> whose negative parsed value writes token ids before the bytes_ buffer during model loading, causing crashes or potential code execution.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-129"],"vendors":[],"products":[],"references":[{"url":"https://github.com/ggml-org/llama.cpp/blob/b10259/src/llama-vocab.cpp#L1376-L1377","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/commit/cf06ad7dfe79e7bf2934150d4fefe1ce8db05490","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/pull/25969","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/pull/26511","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/releases/tag/b10261","tags":[]},{"url":"https://www.vulncheck.com/advisories/llama-cpp-b5899-before-b10261-heap-out-of-bounds-write-via-plamo2-tokenizer","tags":[]}],"exploitRefs":[{"url":"https://github.com/ggml-org/llama.cpp/blob/b10259/src/llama-vocab.cpp#L1376-L1377","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/commit/cf06ad7dfe79e7bf2934150d4fefe1ce8db05490","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/pull/25969","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/pull/26511","tags":[]},{"url":"https://github.com/ggml-org/llama.cpp/releases/tag/b10261","tags":[]}],"hasPoc":true,"ai":null}