Medium severity5.5NVD Advisory· Published Aug 6, 2026· Updated Oct 29, 2026
CVE-2026-70639
CVE-2026-70639
Description
llama.cpp builds b1886 through b7445 contain a null pointer dereference vulnerability in the LLaMA-Android JNI wrapper where the bench_1model() function fails to validate the model context pointer before dereferencing it. Attackers can supply a malicious, corrupt, or truncated model file to trigger a null context condition, causing a SIGSEGV crash that terminates the Android application process and results in denial of service.
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Affected products
3Patches
Vulnerability mechanics
References
3- github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388nvdPatch
- github.com/ggml-org/llama.cpp/releases/tag/b7446nvdPatchRelease NotesVendor Advisory
- www.vulncheck.com/advisories/llama-cpp-b1886-b7445-null-pointer-dereference-dos-via-llama-android-cppnvdThird Party Advisory
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