CVE-2026-116816: fallo de gravedad alta en ggml-org llama.cpp
llama.cpp b5899 before b10261 Heap Out-of-Bounds Write via plamo2 Tokenizer
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.5epss 0.1%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
ggml-org · llama.cppCVEs relacionadas — ggml-org llama.cpp
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-34159CRITICALllama.cpp: Unauthenticated RCE via GRAPH_COMPUTE buffer=0 bypass in llama.cpp RPC backendEPSS 1.6%CVE-2026-78148MEDIUMggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp graph_compute null pointer dereferenceEPSS 0.7%CVE-2026-17501MEDIUMggml-org llama.cpp JSON-Schema-to-GBNF Conversion json-schema-to-grammar.cpp transform recursionEPSS 0.7%CVE-2026-17500MEDIUMggml-org llama.cpp json-schema-to-grammar.cpp _visit_pattern null pointer dereferenceEPSS 0.7%CVE-2026-86317MEDIUMggml-org llama.cpp RPC Server ggml-rpc.cpp deserialize_tensor assertionEPSS 0.7%CVE-2026-43629CRITICALllama.cpp b4882–b9058 Buffer Overflow in KV Cache State RestoreEPSS 0.7%
Referencias
https://github.com/ggml-org/llama.cpp/blob/b10259/src/llama-vocab.cpp#L1376-L1377https://github.com/ggml-org/llama.cpp/commit/cf06ad7dfe79e7bf2934150d4fefe1ce8db05490https://github.com/ggml-org/llama.cpp/pull/25969https://github.com/ggml-org/llama.cpp/pull/26511https://github.com/ggml-org/llama.cpp/releases/tag/b10261https://www.vulncheck.com/advisories/llama-cpp-b5899-before-b10261-heap-out-of-bounds-write-via-plamo2-tokenizer