CVE-2026-52132

high

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.

References

https://github.com/ggml-org/llama.cpp

https://blog.ph4nt0m.xyz/ko/cves/cve-2026-52132/

Details

Source: Mitre, NVD

Published: 2026-09-01

Updated: 2026-09-04

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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