High [CVE-2026-5757] Information disclosure vulnerability in model quantization engine
This high-severity Red Hat Linux advisory covers CVE-2026-5757.
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Summary
Unauthenticated remote information disclosure vulnerability in Ollama's model quantization engine allows an attacker to read and exfiltrate the server's heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.
This vulnerability is rated Important due to the potential for remote exploitation without authentication. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Weakness: CWE-825. Red Hat lists Migration Toolkit for Applications 8; Red Hat Ansible Automation Platform 2; Red Hat build of Debezium 3; Red Hat OpenShift AI (RHOAI); Red Hat Trusted Profile Analyzer as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 12 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 · high-confidence parse· fetched 12 days ago·verify at source
Mitigation checklist
- To mitigate this vulnerability, restrict network access to the Ollama service. Configure firewall rules to limit access to trusted networks or localhost only. If the Ollama service is running, a restart may be required for the changes to take effect.
Official advisory · high-confidence parse· fetched 12 days ago·verify at source
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