CVE-2026-15685

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{"bugzilla": {"description": "Ollama: Ollama: Denial of Service via improper array index validation in downloadBlob function", "id": "2499831", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499831"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in Ollama. This vulnerability allows remote attackers to create a denial-of-service (DoS) condition on affected installations. The issue occurs within the `downloadBlob` function due to improper validation of user-supplied data, which can lead to memory access beyond the bounds of an allocated array. An attacker can exploit this without authentication to disrupt the system's availability."], "name": "CVE-2026-15685", "package_state": [{"cpe": "cpe:/a:redhat:migration_toolkit_applications:8", "fix_state": "Not affected", "package_name": "mta/mta-solution-server-rhel9", "product_name": "Migration Toolkit for Applications 8"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Not affected", "package_name": "ansible-automation-platform-24/lightspeed-rhel8", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Not affected", "package_name": "ansible-automation-platform-25/lightspeed-rhel8", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Not affected", "package_name": "rhoai/odh-trustyai-garak-lls-provider-dsp-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-07-13T21:30:09Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-15685\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-15685\nhttps://www.zerodayinitiative.com/advisories/ZDI-26-403/"], "statement": "This Important vulnerability in Ollama allows a remote, unauthenticated attacker to trigger a denial-of-service condition. The flaw in the `downloadBlob` function, due to improper array index validation, can lead to memory access issues, disrupting the availability of the Ollama service when deployed in a Red Hat environment.", "threat_severity": "Important"}

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