Double Free in Ggml-org Llama.cpp
CVE-2026-43622
llama.cpp builds b1886 through b7445 contain a double free vulnerability in the LLaMA-Android JNI wrapper where new_1batch() allocates memory using malloc() while free_1batch() deallocates it using the C++ delete operator, causing heap met…
Vulnerability class: Double Free
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Ggml-org Llama.cpp — versions b1886, 0.9.0, 5c0d18881e0e9794c96b2602736b758bac9d9388
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes)
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (related)
Frequently asked questions
- What is CVE-2026-43622?
- CVE-2026-43622 is a high-severity vulnerability in Ggml-org Llama.cpp, classified under Double Free. CVSS score: 7.8/10. Published 2026-08-06.
- How severe is CVE-2026-43622?
- High severity. CVSS v3 base score is 7.8 out of 10.