CVE-2026-39909
llama.cpp before b8585 contains a use-after-free vulnerability in the RPC server's...
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
What each source reports
GitHub Advisories Score usedGHSA-fpvp-jgx3-4w9q
llama.cpp before b8585 contains a use-after-free vulnerability in the RPC server's...
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.
- Record
GHSA-fpvp-jgx3-4w9q- CVSS 4.0
- 9.2 Critical
CVSS:4.0/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 - CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
CVE List No score
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
- Record
CVE-2026-39909- Updated
- 2026-11-02
EUVDEUVD-2026-64001
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
- Record
EUVD-2026-64001- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
NVD No score
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
- Record
CVE-2026-39909- Updated
- 2026-11-02
OSV
llama.cpp Use-After-Free in RPC GRAPH_RECOMPUTE Handler
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.
- Record
CVE-2026-39909- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-416
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-39909
- Record
DEBIAN-CVE-2026-39909- CVSS 4.0
- 9.2 Critical
CVSS:4.0/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 - Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
llama.cppDebian:14 |
before 8611+dfsg-1, plus listed versions 5151+dfsg-1~exp25151+dfsg-1~exp35318+dfsg-15318+dfsg-25713+dfsg-1 Show 21 moreShow less5760+dfsg-15760+dfsg-25760+dfsg-35760+dfsg-45882+dfsg-15882+dfsg-25882+dfsg-35882+dfsg-3~exp15882+dfsg-3~exp25882+dfsg-3~exp35882+dfsg-46641+dfsg-16641+dfsg-26641+dfsg-37593+dfsg-17593+dfsg-27593+dfsg-37965+dfsg-18064+dfsg-18064+dfsg-28461+dfsg-1 |
8611+dfsg-1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-39909 has been rejected by its source and should not be treated as a live vulnerability, published August 21, 2026. Fixed in llama.cpp 8611+dfsg-1.
References
nvd.nist.gov/vuln/detail/CVE-2026-39909
github.com/ggml-org/llama.cpp/pull/21175
vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler
security-tracker.debian.org/tracker/CVE-2026-39909