CVE Watch6 ago 2026

CVE-2026-43632

llama.cpp builds b7492 through the latest b9060 contains a use-after-free vulnerability in llama-server affecting six tokenization endpoints

CVSS

8.1

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 6 ago 2026 · Última mod.: 6 ago 2026 · CWE-367 · CWE-416

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

llama.cpp builds b7492 through the latest b9060 contains a use-after-free vulnerability in llama-server affecting six tokenization endpoints (/tokenize, /detokenize, /infill, /apply-template, /rerank, and /anthropic/count_tokens) that bypass the task queue and access ctx_server.vocab directly on HTTP worker threads. Attackers can exploit a time-of-check-time-of-use race condition where the main thread destroys and frees vocab after the synchronization lock is released but before the handler finishes using it, causing a crash or potential code execution when --sleep-idle-seconds is configured.

Referencias oficiales

github.comhttps://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches

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