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CVE-2026-34159 (GCVE-0-2026-34159)

Vulnerability from nvd – Published: 2026-04-01 16:59 – Updated: 2026-04-02 03:56

Title

llama.cpp: Unauthenticated RCE via GRAPH_COMPUTE buffer=0 bypass in llama.cpp RPC backend

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b8492, the RPC backend's deserialize_tensor() skips all bounds validation when a tensor's buffer field is 0. An unauthenticated attacker can read and write arbitrary process memory via crafted GRAPH_COMPUTE messages. Combined with pointer leaks from ALLOC_BUFFER/BUFFER_GET_BASE, this gives full ASLR bypass and remote code execution. No authentication required, just TCP access to the RPC server port. This issue has been patched in version b8492.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/pull/20908	x_refsource_MISC
https://github.com/ggml-org/llama.cpp/commit/39bf…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b8492

Show details on NVD website

JSON

To clipboard

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CVE-2026-33298 (GCVE-0-2026-33298)

Vulnerability from nvd – Published: 2026-03-24 00:01 – Updated: 2026-03-25 03:55

Title

llama.cpp has a Heap Buffer Overflow via Integer Overflow in GGUF Tensor Parsing

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to b7824, an integer overflow vulnerability in the `ggml_nbytes` function allows an attacker to bypass memory validation by crafting a GGUF file with specific tensor dimensions. This causes `ggml_nbytes` to return a significantly smaller size than required (e.g., 4MB instead of Exabytes), leading to a heap-based buffer overflow when the application subsequently processes the tensor. This vulnerability allows potential Remote Code Execution (RCE) via memory corruption. b7824 contains a fix.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-190 - Integer Overflow or Wraparound

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/releases/ta…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b7824

Show details on NVD website

JSON

To clipboard

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CVE-2026-27940 (GCVE-0-2026-27940)

Vulnerability from nvd – Published: 2026-03-12 16:39 – Updated: 2026-03-14 03:55

Title

llama.cpp has a Heap Buffer Overflow via Integer Overflow in `mem_size` Calculation — Bypass of CVE-2025-53630 Fix

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to b8146, the gguf_init_from_file_impl() in gguf.cpp is vulnerable to an Integer overflow, leading to an undersized heap allocation. Using the subsequent fread() writes 528+ bytes of attacker-controlled data past the buffer boundary. This is a bypass of a similar bug in the same file - CVE-2025-53630, but the fix overlooked some areas. This vulnerability is fixed in b8146.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-190 - Integer Overflow or Wraparound

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b8146

Show details on NVD website

JSON

To clipboard

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CVE-2026-21869 (GCVE-0-2026-21869)

Vulnerability from nvd – Published: 2026-01-07 23:37 – Updated: 2026-01-08 19:15

Title

llama.cpp has Out-of-bounds Write in llama-server

Summary

llama.cpp is an inference of several LLM models in C/C++. In commits 55d4206c8 and prior, the n_discard parameter is parsed directly from JSON input in the llama.cpp server's completion endpoints without validation to ensure it's non-negative. When a negative value is supplied and the context fills up, llama_memory_seq_rm/add receives a reversed range and negative offset, causing out-of-bounds memory writes in the token evaluation loop. This deterministic memory corruption can crash the process or enable remote code execution (RCE). There is no fix at the time of publication.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: <= 55d4206c8

Show details on NVD website

JSON

To clipboard

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CVE-2025-52566 (GCVE-0-2025-52566)

Vulnerability from nvd – Published: 2025-06-24 03:21 – Updated: 2025-06-24 21:49

Title

llama.cpp tokenizer signed vs. unsigned heap overflow

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b5721, there is a signed vs. unsigned integer overflow in llama.cpp's tokenizer implementation (llama_vocab::tokenize) (src/llama-vocab.cpp:3036) resulting in unintended behavior in tokens copying size comparison. Allowing heap-overflowing llama.cpp inferencing engine with carefully manipulated text input during tokenization process. This issue has been patched in version b5721.

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-195 - Signed to Unsigned Conversion Error

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/commit/dd6e…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b5721

Show details on NVD website

JSON

To clipboard

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CVE-2025-49847 (GCVE-0-2025-49847)

Vulnerability from nvd – Published: 2025-06-17 20:04 – Updated: 2025-06-18 13:41

Title

llama.cpp Vulnerable to Buffer Overflow via Malicious GGUF Model

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b5662, an attacker‐supplied GGUF model vocabulary can trigger a buffer overflow in llama.cpp’s vocabulary‐loading code. Specifically, the helper _try_copy in llama.cpp/src/vocab.cpp: llama_vocab::impl::token_to_piece() casts a very large size_t token length into an int32_t, causing the length check (if (length < (int32_t)size)) to be bypassed. As a result, memcpy is still called with that oversized size, letting a malicious model overwrite memory beyond the intended buffer. This can lead to arbitrary memory corruption and potential code execution. This issue has been patched in version b5662.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-195 - Signed to Unsigned Conversion Error

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/commit/3cfb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b5662

Show details on NVD website

JSON

To clipboard

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CVE-2024-42479 (GCVE-0-2024-42479)

Vulnerability from nvd – Published: 2024-08-12 15:07 – Updated: 2024-08-13 13:47

Title

llama.cpp allows write-what-where in rpc_server::set_tensor

Summary

llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause arbitrary address writing. This vulnerability is fixed in b3561.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-123 - Write-what-where Condition

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/b72…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3561
ggerganov	llama.cpp	Affected: 0 , < b3561 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2024-42478 (GCVE-0-2024-42478)

Vulnerability from nvd – Published: 2024-08-12 15:05 – Updated: 2024-08-16 19:15

Title

llama.cpp allows Arbitrary Address Read in rpc_server::get_tensor

Summary

llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause arbitrary address reading. This vulnerability is fixed in b3561.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/b72…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3561
ggerganov	llama.cpp	Affected: 0 , < b3561 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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}

CVE-2024-42477 (GCVE-0-2024-42477)

Vulnerability from nvd – Published: 2024-08-12 15:02 – Updated: 2024-08-13 14:07

Title

llama.cpp global-buffer-overflow in ggml_type_size

Summary

llama.cpp provides LLM inference in C/C++. The unsafe `type` member in the `rpc_tensor` structure can cause `global-buffer-overflow`. This vulnerability may lead to memory data leakage. The vulnerability is fixed in b3561.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/b72…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3561
ggerganov	llama.cpp	Affected: 0 , < b3561 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

{
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CVE-2024-41130 (GCVE-0-2024-41130)

Vulnerability from nvd – Published: 2024-07-22 17:28 – Updated: 2024-08-02 04:46

Title

llama.cpp null pointer dereference in gguf_init_from_file

Summary

llama.cpp provides LLM inference in C/C++. Prior to b3427, llama.cpp contains a null pointer dereference in gguf_init_from_file. This vulnerability is fixed in b3427.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/072…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3427
ggerganov	llama.cpp	Affected: 0 , < b3427 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2024-32878 (GCVE-0-2024-32878)

Vulnerability from nvd – Published: 2024-04-26 20:31 – Updated: 2024-08-02 02:20

Title

Use of Uninitialized Variable Vulnerability in llama.cpp

Summary

Llama.cpp is LLM inference in C/C++. There is a use of uninitialized heap variable vulnerability in gguf_init_from_file, the code will free this uninitialized variable later. In a simple POC, it will directly cause a crash. If the file is carefully constructed, it may be possible to control this uninitialized value and cause arbitrary address free problems. This may further lead to be exploited. Causes llama.cpp to crash (DoS) and may even lead to arbitrary code execution (RCE). This vulnerability has been patched in commit b2740.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-456 - Missing Initialization of a Variable

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/releases/t…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: <= b2715
ggerganov	llama.cpp	Affected: 0 , ≤ b2715 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2024-23605 (GCVE-0-2024-23605)

Vulnerability from nvd – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:28

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library header.n_kv functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
ggerganov	llama.cpp	Affected: 0 , < * (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2024-23496 (GCVE-0-2024-23496)

Vulnerability from nvd – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:28

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library gguf_fread_str functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
ggerganov	llama.cpp	Affected: 18c2e17 cpe:2.3:a:ggerganov:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2024-21836 (GCVE-0-2024-21836)

Vulnerability from nvd – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:23

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library header.n_tensors functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
ggerganov	llama.cpp	Affected: 18c2e17 cpe:2.3:a:ggerganov:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2024-21825 (GCVE-0-2024-21825)

Vulnerability from nvd – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:23

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library GGUF_TYPE_ARRAY/GGUF_TYPE_STRING parsing functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
ggerganov	llama.cpp	Affected: 18c2e17 cpe:2.3:a:ggerganov:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2024-21802 (GCVE-0-2024-21802)

Vulnerability from nvd – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:23

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library info->ne functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
llama.cpp	llama.cpp	Affected: 18c2e17 cpe:2.3:a:llama.cpp:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2026-34159 (GCVE-0-2026-34159)

Vulnerability from cvelistv5 – Published: 2026-04-01 16:59 – Updated: 2026-04-02 03:56

Title

llama.cpp: Unauthenticated RCE via GRAPH_COMPUTE buffer=0 bypass in llama.cpp RPC backend

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b8492, the RPC backend's deserialize_tensor() skips all bounds validation when a tensor's buffer field is 0. An unauthenticated attacker can read and write arbitrary process memory via crafted GRAPH_COMPUTE messages. Combined with pointer leaks from ALLOC_BUFFER/BUFFER_GET_BASE, this gives full ASLR bypass and remote code execution. No authentication required, just TCP access to the RPC server port. This issue has been patched in version b8492.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/pull/20908	x_refsource_MISC
https://github.com/ggml-org/llama.cpp/commit/39bf…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b8492

Show details on NVD website

JSON

To clipboard

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CVE-2026-33298 (GCVE-0-2026-33298)

Vulnerability from cvelistv5 – Published: 2026-03-24 00:01 – Updated: 2026-03-25 03:55

Title

llama.cpp has a Heap Buffer Overflow via Integer Overflow in GGUF Tensor Parsing

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to b7824, an integer overflow vulnerability in the `ggml_nbytes` function allows an attacker to bypass memory validation by crafting a GGUF file with specific tensor dimensions. This causes `ggml_nbytes` to return a significantly smaller size than required (e.g., 4MB instead of Exabytes), leading to a heap-based buffer overflow when the application subsequently processes the tensor. This vulnerability allows potential Remote Code Execution (RCE) via memory corruption. b7824 contains a fix.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-190 - Integer Overflow or Wraparound

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/releases/ta…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b7824

Show details on NVD website

JSON

To clipboard

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CVE-2026-27940 (GCVE-0-2026-27940)

Vulnerability from cvelistv5 – Published: 2026-03-12 16:39 – Updated: 2026-03-14 03:55

Title

llama.cpp has a Heap Buffer Overflow via Integer Overflow in `mem_size` Calculation — Bypass of CVE-2025-53630 Fix

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to b8146, the gguf_init_from_file_impl() in gguf.cpp is vulnerable to an Integer overflow, leading to an undersized heap allocation. Using the subsequent fread() writes 528+ bytes of attacker-controlled data past the buffer boundary. This is a bypass of a similar bug in the same file - CVE-2025-53630, but the fix overlooked some areas. This vulnerability is fixed in b8146.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-190 - Integer Overflow or Wraparound

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b8146

Show details on NVD website

JSON

To clipboard

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CVE-2026-21869 (GCVE-0-2026-21869)

Vulnerability from cvelistv5 – Published: 2026-01-07 23:37 – Updated: 2026-01-08 19:15

Title

llama.cpp has Out-of-bounds Write in llama-server

Summary

llama.cpp is an inference of several LLM models in C/C++. In commits 55d4206c8 and prior, the n_discard parameter is parsed directly from JSON input in the llama.cpp server's completion endpoints without validation to ensure it's non-negative. When a negative value is supplied and the context fills up, llama_memory_seq_rm/add receives a reversed range and negative offset, causing out-of-bounds memory writes in the token evaluation loop. This deterministic memory corruption can crash the process or enable remote code execution (RCE). There is no fix at the time of publication.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: <= 55d4206c8

Show details on NVD website

JSON

To clipboard

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CVE-2025-52566 (GCVE-0-2025-52566)

Vulnerability from cvelistv5 – Published: 2025-06-24 03:21 – Updated: 2025-06-24 21:49

Title

llama.cpp tokenizer signed vs. unsigned heap overflow

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b5721, there is a signed vs. unsigned integer overflow in llama.cpp's tokenizer implementation (llama_vocab::tokenize) (src/llama-vocab.cpp:3036) resulting in unintended behavior in tokens copying size comparison. Allowing heap-overflowing llama.cpp inferencing engine with carefully manipulated text input during tokenization process. This issue has been patched in version b5721.

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-195 - Signed to Unsigned Conversion Error

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/commit/dd6e…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b5721

Show details on NVD website

JSON

To clipboard

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CVE-2025-49847 (GCVE-0-2025-49847)

Vulnerability from cvelistv5 – Published: 2025-06-17 20:04 – Updated: 2025-06-18 13:41

Title

llama.cpp Vulnerable to Buffer Overflow via Malicious GGUF Model

Summary

llama.cpp is an inference of several LLM models in C/C++. Prior to version b5662, an attacker‐supplied GGUF model vocabulary can trigger a buffer overflow in llama.cpp’s vocabulary‐loading code. Specifically, the helper _try_copy in llama.cpp/src/vocab.cpp: llama_vocab::impl::token_to_piece() casts a very large size_t token length into an int32_t, causing the length check (if (length < (int32_t)size)) to be bypassed. As a result, memcpy is still called with that oversized size, letting a malicious model overwrite memory beyond the intended buffer. This can lead to arbitrary memory corruption and potential code execution. This issue has been patched in version b5662.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-195 - Signed to Unsigned Conversion Error

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggml-org/llama.cpp/security/ad…	x_refsource_CONFIRM
https://github.com/ggml-org/llama.cpp/commit/3cfb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: < b5662

Show details on NVD website

JSON

To clipboard

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CVE-2024-42479 (GCVE-0-2024-42479)

Vulnerability from cvelistv5 – Published: 2024-08-12 15:07 – Updated: 2024-08-13 13:47

Title

llama.cpp allows write-what-where in rpc_server::set_tensor

Summary

llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause arbitrary address writing. This vulnerability is fixed in b3561.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-123 - Write-what-where Condition

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/b72…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3561
ggerganov	llama.cpp	Affected: 0 , < b3561 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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CVE-2024-42478 (GCVE-0-2024-42478)

Vulnerability from cvelistv5 – Published: 2024-08-12 15:05 – Updated: 2024-08-16 19:15

Title

llama.cpp allows Arbitrary Address Read in rpc_server::get_tensor

Summary

llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause arbitrary address reading. This vulnerability is fixed in b3561.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/b72…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3561
ggerganov	llama.cpp	Affected: 0 , < b3561 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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        }
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        "advisory": "GHSA-5vm9-p64x-gqw9",
        "discovery": "UNKNOWN"
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      "title": "llama.cpp allows Arbitrary Address Read in rpc_server::get_tensor"
    }
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    "dateReserved": "2024-08-02T14:13:04.616Z",
    "dateUpdated": "2024-08-16T19:15:15.749Z",
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CVE-2024-42477 (GCVE-0-2024-42477)

Vulnerability from cvelistv5 – Published: 2024-08-12 15:02 – Updated: 2024-08-13 14:07

Title

llama.cpp global-buffer-overflow in ggml_type_size

Summary

llama.cpp provides LLM inference in C/C++. The unsafe `type` member in the `rpc_tensor` structure can cause `global-buffer-overflow`. This vulnerability may lead to memory data leakage. The vulnerability is fixed in b3561.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/b72…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3561
ggerganov	llama.cpp	Affected: 0 , < b3561 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

{
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CVE-2024-41130 (GCVE-0-2024-41130)

Vulnerability from cvelistv5 – Published: 2024-07-22 17:28 – Updated: 2024-08-02 04:46

Title

llama.cpp null pointer dereference in gguf_init_from_file

Summary

llama.cpp provides LLM inference in C/C++. Prior to b3427, llama.cpp contains a null pointer dereference in gguf_init_from_file. This vulnerability is fixed in b3427.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/commit/072…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: < b3427
ggerganov	llama.cpp	Affected: 0 , < b3427 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

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  "containers": {
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CVE-2024-32878 (GCVE-0-2024-32878)

Vulnerability from cvelistv5 – Published: 2024-04-26 20:31 – Updated: 2024-08-02 02:20

Title

Use of Uninitialized Variable Vulnerability in llama.cpp

Summary

Llama.cpp is LLM inference in C/C++. There is a use of uninitialized heap variable vulnerability in gguf_init_from_file, the code will free this uninitialized variable later. In a simple POC, it will directly cause a crash. If the file is carefully constructed, it may be possible to control this uninitialized value and cause arbitrary address free problems. This may further lead to be exploited. Causes llama.cpp to crash (DoS) and may even lead to arbitrary code execution (RCE). This vulnerability has been patched in commit b2740.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-456 - Missing Initialization of a Variable

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ggerganov/llama.cpp/security/a…	x_refsource_CONFIRM
https://github.com/ggerganov/llama.cpp/releases/t…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
ggerganov	llama.cpp	Affected: <= b2715
ggerganov	llama.cpp	Affected: 0 , ≤ b2715 (custom) cpe:2.3:a:ggerganov:llama.cpp::::::::

Show details on NVD website

JSON

To clipboard

{
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CVE-2024-21825 (GCVE-0-2024-21825)

Vulnerability from cvelistv5 – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:23

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library GGUF_TYPE_ARRAY/GGUF_TYPE_STRING parsing functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
ggerganov	llama.cpp	Affected: 18c2e17 cpe:2.3:a:ggerganov:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2024-23496 (GCVE-0-2024-23496)

Vulnerability from cvelistv5 – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:28

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library gguf_fread_str functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
ggerganov	llama.cpp	Affected: 18c2e17 cpe:2.3:a:ggerganov:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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CVE-2024-21802 (GCVE-0-2024-21802)

Vulnerability from cvelistv5 – Published: 2024-02-26 16:07 – Updated: 2025-11-04 18:23

Summary

A heap-based buffer overflow vulnerability exists in the GGUF library info->ne functionality of llama.cpp Commit 18c2e17. A specially crafted .gguf file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

talos

References

2 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…
https://www.talosintelligence.com/vulnerability_r…

Impacted products

2 products

Vendor	Product	Version
llama.cpp	llama.cpp	Affected: Commit 18c2e17
llama.cpp	llama.cpp	Affected: 18c2e17 cpe:2.3:a:llama.cpp:llama.cpp::::::::

Credits

Discovered by Francesco Benvenuto of Cisco Talos.

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
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32 vulnerabilities found for llama.cpp by ggml

CVE-2026-34159 (GCVE-0-2026-34159)

CVE-2026-33298 (GCVE-0-2026-33298)

CVE-2026-27940 (GCVE-0-2026-27940)

CVE-2026-21869 (GCVE-0-2026-21869)

CVE-2025-52566 (GCVE-0-2025-52566)

CVE-2025-49847 (GCVE-0-2025-49847)

CVE-2024-42479 (GCVE-0-2024-42479)

CVE-2024-42478 (GCVE-0-2024-42478)

CVE-2024-42477 (GCVE-0-2024-42477)

CVE-2024-41130 (GCVE-0-2024-41130)

CVE-2024-32878 (GCVE-0-2024-32878)

CVE-2024-23605 (GCVE-0-2024-23605)

CVE-2024-23496 (GCVE-0-2024-23496)

CVE-2024-21836 (GCVE-0-2024-21836)

CVE-2024-21825 (GCVE-0-2024-21825)

CVE-2024-21802 (GCVE-0-2024-21802)

CVE-2026-34159 (GCVE-0-2026-34159)

CVE-2026-33298 (GCVE-0-2026-33298)

CVE-2026-27940 (GCVE-0-2026-27940)

CVE-2026-21869 (GCVE-0-2026-21869)

CVE-2025-52566 (GCVE-0-2025-52566)

CVE-2025-49847 (GCVE-0-2025-49847)

CVE-2024-42479 (GCVE-0-2024-42479)

CVE-2024-42478 (GCVE-0-2024-42478)

CVE-2024-42477 (GCVE-0-2024-42477)

CVE-2024-41130 (GCVE-0-2024-41130)

CVE-2024-32878 (GCVE-0-2024-32878)

CVE-2024-21825 (GCVE-0-2024-21825)

CVE-2024-23496 (GCVE-0-2024-23496)

CVE-2024-21802 (GCVE-0-2024-21802)

Find a vulnerability

Search criteria ⓘ Use this form to refine search results. Full-text search supports keyword queries with ranking and filtering. You can combine vendor, product, and sources to narrow results. Enable “Apply ordering” to sort by date instead of relevance.

32 vulnerabilities found for llama.cpp by ggml

CVE-2026-34159 (GCVE-0-2026-34159)

CVE-2026-33298 (GCVE-0-2026-33298)

CVE-2026-27940 (GCVE-0-2026-27940)

CVE-2026-21869 (GCVE-0-2026-21869)

CVE-2025-52566 (GCVE-0-2025-52566)

CVE-2025-49847 (GCVE-0-2025-49847)

CVE-2024-42479 (GCVE-0-2024-42479)

CVE-2024-42478 (GCVE-0-2024-42478)

CVE-2024-42477 (GCVE-0-2024-42477)

CVE-2024-41130 (GCVE-0-2024-41130)

CVE-2024-32878 (GCVE-0-2024-32878)

CVE-2024-23605 (GCVE-0-2024-23605)

CVE-2024-23496 (GCVE-0-2024-23496)

CVE-2024-21836 (GCVE-0-2024-21836)

CVE-2024-21825 (GCVE-0-2024-21825)

CVE-2024-21802 (GCVE-0-2024-21802)

CVE-2026-34159 (GCVE-0-2026-34159)

CVE-2026-33298 (GCVE-0-2026-33298)

CVE-2026-27940 (GCVE-0-2026-27940)

CVE-2026-21869 (GCVE-0-2026-21869)

CVE-2025-52566 (GCVE-0-2025-52566)

CVE-2025-49847 (GCVE-0-2025-49847)

CVE-2024-42479 (GCVE-0-2024-42479)

CVE-2024-42478 (GCVE-0-2024-42478)

CVE-2024-42477 (GCVE-0-2024-42477)

CVE-2024-41130 (GCVE-0-2024-41130)

CVE-2024-32878 (GCVE-0-2024-32878)

CVE-2024-21825 (GCVE-0-2024-21825)

CVE-2024-23496 (GCVE-0-2024-23496)

CVE-2024-21802 (GCVE-0-2024-21802)

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.