Vulnerability in Ggml-Org Llama.cpp

CVE-2026-17501

A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This manipulation causes uncontrolled recursion. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.

EPSS: 0.004 (35.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17501?
CVE-2026-17501 is a medium-severity vulnerability in Ggml-Org Llama.cpp, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-07-27.
How severe is CVE-2026-17501?
Medium severity. CVSS v3 base score is 5.3 out of 10.