CVE-2026-52132

EUVD-2026-69410
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 46.93%
Affected Products (NVD)
VendorProductVersion
ggmlllama.cpp
𝑥
≤ 0.4.0
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
llama.cpp
jammy
dne
noble
dne
resolute
needs-triage
Common Weakness Enumeration
References
https://blog.ph4nt0m.xyz/ko/cves/cve-2026-52132/
https://github.com/ggml-org/llama.cpp