Bug 2507392 (CVE-2026-17501)

Summary: CVE-2026-17501 llama.cpp: llama.cpp: Denial of Service due to resource allocation manipulation in JSON-Schema-to-GBNF Conversion
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in llama.cpp. A remote attacker could exploit a vulnerability in the JSON-Schema-to-GBNF Conversion component, specifically within the `transform` function. This flaw allows for the manipulation of resource allocation, which can lead to a denial of service (DoS) by exhausting available system resources.
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Bug Depends On: 2507585, 2507586, 2507587    
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Description OSIDB Bzimport 2026-07-27 01:01:27 UTC 
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 allocation of resources. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.