CVE-2026-52132

State: Published
Severity: 7.5 High
Published: Sep 1, 2026
Updated: Sep 2, 2026
Reserved: Jun 8, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-674 Uncontrolled Recursion

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/ggml-org/llama.cpp
https://blog.ph4nt0m.xyz/ko/cves/cve-2026-52132/

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