Medium 5.3Published Jul 26, 2026

CVE-2026-17501ggml-org llama.cpp JSON-Schema-to-GBNF Conversion json-schema-to-grammar.cpp transform recursion

Updated under an hour ago (Oct 26, 2026, 10:10 AM ET)

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Every CVE for ggml-org llama.cpp

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R
Weakness (CWE): CWE-674, CWE-404
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jul 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ggml-org llama.cpp ggml-org:llama.cpp	e15efe0	CNA record

References

https://vuldb.com/vuln/383354vdb-entry, technical-description
https://vuldb.com/vuln/383354/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-17501third-party-advisory
https://vuldb.com/submit/798504third-party-advisory
https://github.com/ggml-org/llama.cpp/issues/25283issue-tracking
https://github.com/ggml-org/llama.cpp/pull/25308issue-tracking, patch
https://github.com/ggml-org/llama.cpp/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.