CVE-2026-25243

Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/redis/redis/releases/tag/8.6.3	Release Notes
https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4	Mitigation Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:14316
https://access.redhat.com/errata/RHSA-2026:23229
https://access.redhat.com/errata/RHSA-2026:25216
https://access.redhat.com/errata/RHSA-2026:25219
https://access.redhat.com/errata/RHSA-2026:25925
https://access.redhat.com/errata/RHSA-2026:26008
https://access.redhat.com/errata/RHSA-2026:26233
https://access.redhat.com/errata/RHSA-2026:26306
https://access.redhat.com/errata/RHSA-2026:26540
https://access.redhat.com/errata/RHSA-2026:27716
https://access.redhat.com/errata/RHSA-2026:27787
https://access.redhat.com/errata/RHSA-2026:28139
https://access.redhat.com/errata/RHSA-2026:28142
https://access.redhat.com/errata/RHSA-2026:29817
https://access.redhat.com/errata/RHSA-2026:33427
https://access.redhat.com/security/cve/CVE-2026-25243
https://bugzilla.redhat.com/show_bug.cgi?id=2466828
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25243.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-05 17:17

Updated : 2026-07-25 11:10

NVD link : CVE-2026-25243

Mitre link : CVE-2026-25243

CVE.ORG link : CVE-2026-25243

JSON object : View

Products Affected

redis

redis

CWE

CWE-122

Heap-based Buffer Overflow

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"0:6.2.7-1.el9_2.6", "lessThan": "*", "versionType": "rpm"}], "packageName": "redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.4"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:6.2.7-1.el9_4.6", "lessThan": "*", "versionType": "rpm"}], "packageName": "redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.4"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "9040020260618054637.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "redis:7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:6.2.22-1.el9_6", "lessThan": "*", "versionType": "rpm"}], "packageName": "redis", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "9060020260602115714.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "redis:7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:hummingbird:1"], "vendor": "Red Hat", "product": "Red Hat Hardened Images", "versions": [{"status": "unaffected", "version": "9.0.4-0.1.hum1", "lessThan": "*", "versionType": "rpm"}], "packageName": "valkey-main", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:hummingbird:1"], "vendor": "Red Hat", "product": "Red Hat Hardened Images", "packageName": "boost", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-05-05T17:17:03.667", "references": [{"url": "https://github.com/redis/redis/releases/tag/8.6.3", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14316", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:23229", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:25216", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:25219", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:25925", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26008", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26233", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26306", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26540", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:27716", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:27787", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:28139", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:28142", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:29817", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:33427", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-25243", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466828", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25243.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-122"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3."}, {"lang": "es", "value": "Redis es un almac\u00e9n de estructuras de datos en memoria. En versiones de redis-server hasta la 8.6.3, el comando RESTORE no valida correctamente los valores serializados. Un atacante autenticado con permiso para ejecutar RESTORE puede proporcionar una carga \u00fatil serializada manipulada que desencadena un acceso a memoria no v\u00e1lido y puede conducir a la ejecuci\u00f3n remota de c\u00f3digo. Una soluci\u00f3n alternativa es restringir el acceso al comando RESTORE con reglas ACL. Esto est\u00e1 parcheado en la versi\u00f3n 8.6.3."}], "lastModified": "2026-07-25T11:10:00.100", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D27823C5-96F2-4D85-89CF-9C5DEAC584E3", "versionEndExcluding": "8.6.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}