CVE-2026-43630
llama.cpp b4882-b8487 Out-of-Bounds Read Information Disclosure
CVSS Score
6.5
EPSS Score
0.5%
EPSS Percentile
42th
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.
| CWE | CWE-125 CWE-209 |
| Vendor | ggml-org |
| Product | llama.cpp |
| Published | Aug 6, 2026 |
| Last Updated | Oct 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low
Affected Versions
ggml-org / llama.cpp
b4882 < b8487
References
github.com: https://github.com/ggml-org/llama.cpp github.com: https://github.com/ggml-org/llama.cpp/commit/f93c09e2673090b59802f2552848a1cac70598b0 github.com: https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches vulncheck.com: https://www.vulncheck.com/advisories/llama-cpp-b5702-b7653-out-of-bounds-read-information-disclosure
Credits
Vladimir Tokarev (@G1ND1L4) - Vulnerability Research Tech Lead, Cyera Ofek Itach (@ofekitach) - Security Research Team Lead, Cyera