CVE-2026-52132CWE-674

CVE-2026-52132

High · published September 1, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
47.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00588 · 47.4th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-09-01T22:17Z
Affected products (1)
ProductVersionsFixed in
ggml/llama.cpp≤ 0.4.0—
References (2)
https://blog.ph4nt0m.xyz/ko/cves/cve-2026-52132/ · [email protected]https://github.com/ggml-org/llama.cpp · [email protected]
EPSS history
Timeline
  • 03 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 01 SEP 00:00Z
    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)…
    cvelistv5