Medium [CVE-2026-17501] Denial of Service due to resource allocation manipulation in JSON-Schema-to-GBNF Conversion
This medium-severity Red Hat Linux advisory covers CVE-2026-17501.
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Summary
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. This flaw allows for the manipulation of resource allocation, which can lead to a denial of service (DoS) by exhausting available system resources.
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery.
For more information about this vulnerability and the affected packages, refer to the linked references. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
Weakness: CWE-1050.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · medium-confidence parse· fetched 27 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 27 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 27 days ago·verify at source
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