llama.cpp b5854 before b11275 contains an integer overflow vulnerability in gguf_init_from_reader that bypasses the CVE-2025-53630 size check when padding near-SIZE_MAX tensor sizes. Attackers can supply a crafted GGUF file whose tensor size pads to zero, causing an undersized data blob and out-of-bounds reads by consumers.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 6
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-27 14:14
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-27 15:59
- StatusReceived → PublishedNVD modified 2026-10-27 14:14
- StatusPublished → ReceivedNVD modified 2026-10-27 14:16
- StatusReceived → PublishedNVD modified 2026-10-27 00:33
- First seenCVSS 6.9NVD modified 2026-10-27 01:19
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://github.com/ggml-org/llama.cpp/blob/v0.5.0/ggml/src/gguf.cpp#L794-L795
- https://github.com/ggml-org/llama.cpp/commit/a6ea155d3d38b3f6f43d0c0dc29c2d592413ef44
- https://github.com/ggml-org/llama.cpp/issues/26978
- https://github.com/ggml-org/llama.cpp/pull/26979
- https://github.com/ggml-org/llama.cpp/releases/tag/b11275
- https://www.vulncheck.com/advisories/llama-cpp-b5854-before-b11275-integer-overflow-in-gguf-init-from-reader