Denial of Service Vulnerability in llama.cpp by ggml-org
CVE-2026-52130

7.5HIGH

Key Information:

Vendor

ggml-org

Status
llama.cpp
Vendor
CVE Published:
1 September 2026

What is CVE-2026-52130?

The llama.cpp library, specifically versions up to b5693, is susceptible to a Denial of Service (DoS) attack due to uncontrolled recursion in the json-schema-to-grammar.cpp file. This vulnerability can lead to excessive resource consumption, resulting in service interruptions and potential degradation of system performance.

References

https://github.com/ggml-org/llama.cpp
https://blog.ph4nt0m.xyz/ko/cves/cve-2026-52130/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.