{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/tuxcare9.6esu/vex/2026/cve-2026-21863-els_os-tuxcare9_6esu.json" } ], "tracking": { "current_release_date": "2026-06-05T01:38:51Z", "generator": { "date": "2026-06-05T01:38:51Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-21863-ELS_OS-TUXCARE9.6ESU", "initial_release_date": "2026-02-23T19:41:00Z", "revision_history": [ { "date": "2026-02-23T19:41:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-06-05T01:38:51Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update 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"redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686 as a component of Rocky Linux 9.6", "product_id": "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686" }, "product_reference": "redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "relates_to_product_reference": "Rocky Linux-9.6" }, { "category": "default_component_of", "full_product_name": { "name": "redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64 as a component of Rocky Linux 9.6", "product_id": "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64" }, "product_reference": "redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "relates_to_product_reference": "Rocky Linux-9.6" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-21863", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious actor with access to the Valkey clusterbus port can send an invalid packet that may cause an out bound read, which might result in the system crashing. The Valkey clusterbus packet processing code does not validate that a clusterbus ping extension packet is located within buffer of the clusterbus packet before attempting to read it. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue. As an additional mitigation, don't expose the cluster bus connection directly to end users, and protect the connection with its own network ACLs.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "under_investigation": [ "AlmaLinux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.i686", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "AlmaLinux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els1.noarch", "AlmaLinux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els2.noarch", "Rocky Linux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.i686", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "Rocky Linux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els1.noarch", "Rocky Linux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els2.noarch" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-21863" } ], "release_date": "2026-02-23T19:41:00Z", "remediations": [ { "category": "none_available", "date": "2026-06-04T23:32:53.543810Z", "details": "Affected", "product_ids": [ "AlmaLinux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.i686", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "AlmaLinux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els1.noarch", "AlmaLinux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els2.noarch", "Rocky Linux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.i686", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "Rocky Linux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els1.noarch", "Rocky Linux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els2.noarch" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "AlmaLinux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.i686", "AlmaLinux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "AlmaLinux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els1.noarch", "AlmaLinux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els2.noarch", "Rocky Linux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:redis-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.i686", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els1.x86_64", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.i686", "Rocky Linux-9.6:redis-devel-0:6.2.20-1.el9_6.tuxcare.els2.x86_64", "Rocky Linux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els1.noarch", "Rocky Linux-9.6:redis-doc-0:6.2.20-1.el9_6.tuxcare.els2.noarch" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }