CVE-2026-43632 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. Descriptionllama.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. Metrics
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CVSS 4.0 Severity and Vector Strings:
CNA: VulnCheck
CVSS-B 9.2 CRITICAL
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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Quick InfoCVE Dictionary Entry:CVE-2026-43632 NVD Published Date: 08/06/2026 NVD Last Modified: 08/06/2026 Source: VulnCheck |
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