Description
llama.cpp through commit 97f06e9, when started with the --reranking flag, allows remote attackers to cause a denial of service (std::bad_alloc and HTTP 500) via a negative top_n value in a POST request to /rerank.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | llama.cpp | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | llama.cpp | No fix yet | — |
| Ubuntu 26.04 LTS | llama.cpp | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | llamacpp | 0.4.0-1.1 | openSUSE-SU-2026:11720-1 |
Advisories 1
- openSUSE-SU-2026:11720-1 ggml-devel-0.4.0-1.1 on GA media SUSE / openSUSE Security Updates · Sep 9, 2026