CVE-2026-43622
highpriority · track · 0EPSS 0.002 · 14 %ileEUUSEPSS · scored 2026-10-27
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 metadata corruption. Attackers can trigger this memory management mismatch to cause denial of service through process crashes or potentially achieve arbitrary code execution depending on allocator state.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–8.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patchescnnvd
- https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388cnnvd
- https://github.com/ggml-org/llama.cpp/releasesPatchcnnvd
- https://github.com/ggml-org/llama.cpp/releases/tag/b7446cnnvd
- https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patchesenisa_euvd
- https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388enisa_euvd
- https://github.com/ggml-org/llama.cpp/releases/tag/b7446enisa_euvd
- https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-double-free-via-llama-android-cppenisa_euvd
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