CVE-2026-103005

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{"bugzilla": {"description": "elasticsearch: Elasticsearch: Denial of Service via excessive memory allocation in connector descriptions", "id": "2547116", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547116"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with connector management privileges could cause the cluster to allocate an uncontrolled amount of memory when connector resources with an excessively large `description` field are created and subsequently accessed, exhausting available heap memory and crashing the affected node.", "A flaw was found in Elasticsearch. An authenticated attacker with connector management privileges can create and access connector resources containing an excessively large description field, causing the cluster to allocate an uncontrolled amount of memory. This issue can exhaust available heap memory, crashing the affected node and resulting in a Denial of Service (DoS)."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-103005", "package_state": [{"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "package_name": "rhoai/odh-feature-server-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Not affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Not affected", "package_name": "quay/quay-rhel9", "product_name": "Red Hat Quay 3"}], "public_date": "2026-10-06T19:31:47Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-103005\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-103005\nhttps://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-195/390869"], "statement": "This vulnerability is rated Moderate rather than Important because exploitation requires valid credentials with specific connector management privileges, substantially constraining the attack surface to trusted operators. In typical Red Hat deployments, Elasticsearch endpoints are isolated within protected network segments and administrative privileges are tightly controlled via role-based authorization. Consequently, unauthenticated or unprivileged users cannot trigger the memory exhaustion condition, and the impact is confined to service availability on the affected node.", "threat_severity": "Moderate"}

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