CVE-2026-43632
CVE-2026-43632: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.1
High [CVE-2026-43632] Potential code execution via a race condition in tokenization endpoints
CVE-2026-43632Source published Source updated
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. Successful exploitation could lead to a system crash or potentially arbitrary code execution. This occurs when the main thread releases synchronization locks and destroys the vocabulary structure…
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- To mitigate this issue, avoid configuring the `llama-server` with the `--sleep-idle-seconds` option. Disabling this option prevents the specific race condition that leads to the use-after-free vulnerability. If `llama-server` is running as a service, a restart of the service will be required for the change to take effect.
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