Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2026-39909 on 3 September 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
CVE-2026-39909
llama.cpp Use-After-Free in RPC GRAPH_RECOMPUTE Handler
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
INFO
Published Date :
Aug. 21, 2026, 5:16 p.m.
Last Modified :
Sept. 3, 2026, 1:05 p.m.
Remotely Exploit :
—
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-39909 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-39909 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by [email protected]
Sep. 03, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 03, 2026
Action Type Old Value New Value Changed Description llama.cpp before b8585 contains a use-after-free vulnerability in the RPC server's GRAPH_RECOMPUTE handler that allows unauthenticated remote attackers to achieve arbitrary read and write access by storing a computation graph, freeing referenced buffers, and reclaiming freed memory with attacker-controlled content. Attackers can send RPC requests to trigger re-execution of stored graphs with dangling pointers, enabling full remote code execution without requiring authentication or user interaction. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Removed CVSS V4.0 VulnCheck: AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Removed CVSS V3.1 VulnCheck: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CVSS V3.1 nvd-ai-agent-0.3.0-gemma-4-31B-it: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CWE VulnCheck: CWE-416 Removed CWE nvd-ai-agent-0.3.0-gemma-4-31B-it: CWE-416 Removed CPE Configuration OR *cpe:2.3:a:ggml:llama.cpp:*:*:*:*:*:*:*:* versions up to (excluding) b8585 Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/39xxx/CVE-2026-39909.json">CVE-2026-39909</a> Removed Reference VulnCheck: https://github.com/ggml-org/llama.cpp/commit/389c7d4955ba55c7418afaebf7c23d9ed64ef707 Removed Reference VulnCheck: https://github.com/ggml-org/llama.cpp/pull/21175 Removed Reference VulnCheck: https://github.com/ggml-org/llama.cpp/releases/tag/b8585 Removed Reference VulnCheck: https://www.vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/ggml-org/llama.cpp/commit/389c7d4955ba55c7418afaebf7c23d9ed64ef707 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/ggml-org/llama.cpp/pull/21175 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/ggml-org/llama.cpp/releases/tag/b8585 Removed Reference nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/ggml-org/llama.cpp/commit/389c7d4955ba55c7418afaebf7c23d9ed64ef707 Types: Not Applicable Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/ggml-org/llama.cpp/pull/21175 Types: Not Applicable Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://github.com/ggml-org/llama.cpp/releases/tag/b8585 Types: Patch, Release Notes Removed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-39909', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-21T21:20:35.912727Z'} {'id': 'CVE-2026-39909', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-24T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 21, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-39909', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-21T21:20:35.912727Z'} -
New CVE Received by [email protected]
Aug. 21, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/ggml-org/llama.cpp', 'vendor': 'ggml-org', 'product': 'llama.cpp', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'b8585', 'versionType': 'custom'}], 'packageURL': 'pkg:github/ggml-org/llama.cpp', 'defaultStatus': 'unaffected'}] Added Description llama.cpp before b8585 contains a use-after-free vulnerability in the RPC server's GRAPH_RECOMPUTE handler that allows unauthenticated remote attackers to achieve arbitrary read and write access by storing a computation graph, freeing referenced buffers, and reclaiming freed memory with attacker-controlled content. Attackers can send RPC requests to trigger re-execution of stored graphs with dangling pointers, enabling full remote code execution without requiring authentication or user interaction. Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 Added Reference https://github.com/ggml-org/llama.cpp/commit/389c7d4955ba55c7418afaebf7c23d9ed64ef707 Added Reference https://github.com/ggml-org/llama.cpp/pull/21175 Added Reference https://github.com/ggml-org/llama.cpp/releases/tag/b8585 Added Reference https://www.vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler