CVE-2026-43630: llama.cpp builds b4882 before b8487 contain an out-of-bounds read vulnerability in the recurrent memory state restore…
CVE-2026-43630 · Severity: medium · CVSS 6.5 · Published 2026-08-06
llama.cpp builds b4882 before b8487 contain an out-of-bounds read vulnerability in the recurrent memory state restore path that allows attackers with write access to the slot save directory to read memory past the end of the allocated cells array. Attackers can craft a malicious slot file with an oversized seq_id value to trigger an out-of-bounds read that leaks heap data including pointer values into server logs, defeating ASLR protections and facilitating further exploitation.
No. Junglewise Threat Intelligence has no report of CVE-2026-43630 being exploited in the wild.
How severe is CVE-2026-43630?
Medium severity, with a CVSS score of 6.5, published 6 August 2026.
Which products and versions are affected?
GGML Llama.Cpp. The advisory does not name versions.
Is there a fix for CVE-2026-43630?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-43630?
Check whether you run GGML Llama.Cpp. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.