llama.cpp Out-of-Bounds Read via Crafted GGUF Tensor Offsets
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
llama.cpp from b1046 before b2731 contains an out-of-bounds read (CWE-125) in llama_model_loader. A crafted or truncated GGUF model file with arbitrary 64-bit tensor offsets lets an attacker read memory outside the mapped model file. An attacker who gets a victim to load such a model can crash the process or load adjacent process memory as model weights.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
llama.cpp before b2731 contains an out-of-bounds read vulnerability in llama_model_loader that allows attackers to read memory outside the mapped model file via crafted GGUF tensor offsets. Attackers can supply a crafted or truncated GGUF model file with arbitrary 64-bit tensor offsets to crash the process or load adjacent process memory as model weights.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update llama.cpp to b2731 or later, the first fixed version listed for ggml-org llama.cpp.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
- Fix · CNA llama.cpp (ggml-org) Fixed in b2731
Timeline
- 2026-10-27 Threatist record created from CVE-2024-58399
- 2026-10-27 Alias added: GHSA-xf8w-pfxh-7xj3
- 2026-10-27 Priority changed: MEDIUM → LOW
- 2026-11-02 CISA SSVC decision points changed
References
More ggml-org vulnerabilities
- TI-2026-26459 llama.cpp: Unauthenticated RCE via GRAPH_COMPUTE buffer=0 bypass in llama.cpp RPC backend CVSS 3.1CRITICAL 9.8
- TI-2024-28446 llama.cpp allows Arbitrary Address Read in rpc_server::get_tensor CVSS 3.1CRITICAL 9.8
- TI-2026-17570 llama.cpp has Out-of-bounds Write in llama-server CVSS 3.1CRITICAL 9.8
- TI-2024-28447 llama.cpp allows write-what-where in rpc_server::set_tensor CVSS 3.1CRITICAL 10.0
- TI-2024-15627 Integer overflow in ggml-org llama.cpp CVSS 3.1CRITICAL 9.8
- TI-2024-14482 Heap-based buffer overflow in ggml-org llama.cpp CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-58399 · CVE Program
- CVE-2024-58399 · NVD
- FIRST EPSS
- GHSA-xf8w-pfxh-7xj3 · GitHub Advisory Database · CC BY 4.0
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