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.
This CVE has been withdrawn by MITRE
MITRE marked CVE-2026-39909 as REJECTED on . It is no longer considered a valid vulnerability record. The original content below is preserved for historical reference only.
Reason given by MITRE
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
CVE-2026-39909
✕ Withdrawn — historical dataHIGHPre-NVD 8.1
8.1CVSS
- CVSS v3
- 8.1
- EchelonGraph score
- Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
- EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- —Not applicable: this CVE ID was withdrawn
Published
August 21, 2026
Last Modified
August 25, 2026
References (4)
- disclosure@vulncheckhttps://github.com/ggml-org/llama.cpp/commit/389c7d4955ba55c7418afaebf7c23d9ed64ef707
- disclosure@vulncheckhttps://github.com/ggml-org/llama.cpp/pull/21175
- disclosure@vulncheckhttps://github.com/ggml-org/llama.cpp/releases/tag/b8585
- disclosure@vulncheckhttps://www.vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler
Frequently asked(4)
What is CVE-2026-39909?
CVE-2026-39909 is a rejected CVE ID: its record was withdrawn on September 2, 2026 and no longer describes a vulnerability. Reason given: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
When was the CVE record for CVE-2026-39909 published?
The CVE record for CVE-2026-39909 was published on August 21, 2026. EchelonGraph's copy of the record carries a last-modified date of August 25, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-39909?
CVE-2026-39909 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-39909?
There is nothing to remediate under CVE-2026-39909: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability.