What’s Vulnerable › Vulnerabilities

CVE-2026-43630: llama.cpp b4882-b8487 Out-of-Bounds Read Information Disclosure

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-06 · updated 2026-10-22
• Weakness: CWE-125

Description

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.

Affected products

• ggml-org llama.cpp: from b5702 through b7653

References

• https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches
• https://github.com/ggml-org/llama.cpp
• https://github.com/ggml-org/llama.cpp/commit/f93c09e2673090b59802f2552848a1cac70598b0
• https://www.vulncheck.com/advisories/llama-cpp-b5702-b7653-out-of-bounds-read-information-disclosure

Get alerted when CVE-2026-43630 or the next vulnerability affects your stack