{"schema":"threatline.record/2","record":{"id":"CVE-2026-116840","aliases":[],"summary":"llama.cpp b5854 before b11275 Integer Overflow in gguf_init_from_reader","details":"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.","categories":["Unclassified"],"product":"llama.cpp","vendor":"ggml-org","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116840","source_modified_at":"2026-10-27T00:33:59.834Z","fetched_at":"2026-10-27T04:51:10.072820Z","product":"llama.cpp","vendor":"ggml-org","versions":[{"version":"b5854","status":"affected","versionType":"custom","lessThan":"b11275"},{"version":"0.1.0","status":"affected","versionType":"semver","lessThan":"0.6.0"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116840","source_modified_at":"2026-10-27T00:33:59.834Z","fetched_at":"2026-10-27T04:51:10.072820Z","package":{"name":"llama.cpp","ecosystem":null},"version":"0.6.0","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T00:33:59.834Z","modified_at":"2026-10-27T00:33:59.834Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116840","fetched_at":"2026-10-27T04:51:10.072820Z","source_modified_at":"2026-10-27T00:33:59.834Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/ggml-org/llama.cpp/issues/26978","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/ggml-org/llama.cpp/pull/26979","tags":["patch","issue-tracking"]},{"source":"CVE List","url":"https://github.com/ggml-org/llama.cpp/commit/a6ea155d3d38b3f6f43d0c0dc29c2d592413ef44","tags":["patch"]},{"source":"CVE List","url":"https://github.com/ggml-org/llama.cpp/blob/v0.5.0/ggml/src/gguf.cpp#L794-L795","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/ggml-org/llama.cpp/releases/tag/b11275","tags":["release-notes"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/llama-cpp-b5854-before-b11275-integer-overflow-in-gguf-init-from-reader","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-27T00:33:59.834Z","content_hash":"7b614a2e12fb763cfeafee60cbaf2e617f48d1c268bb118a6636867b4b53b905"}}