A vulnerability was detected in valkey-io valkey up to 9.5.4/9.1.0. Affected by this vulnerability is the function createSlotImportJob of the file src/cluster_migrateslots.c of the component Slot Migration. The manipulation of the argument job_name results in out-of-bounds read. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 9.0.5 and 9.1.1 addresses this issue. The patch is identified as f4dc3ca09eb650c2fe14060090a41c524eca803f. Upgrading the affected component is advised.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3091 advisory.

    A security flaw has been discovered in valkey-io valkey 9.1.0. The affected element is the function     handleClientsBlockedOnKey of the file src/blocked.c of the component Blocked-on-keys Subsystem. The     manipulation results in use after free. The attack may be performed from remote. A high complexity level     is associated with this attack. The exploitability is described as difficult. The exploit has been     released to the public and may be used for attacks. The patch is identified as     b2fb0e13f5b4c8c2fb63dcfc2c37a067a0d6d20b. Applying a patch is advised to resolve this issue.
    (CVE-2026-82631)

    A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of     the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The     attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name:
    b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch.
    (CVE-2026-82677)

    A vulnerability was detected in valkey-io valkey up to 9.5.4/9.1.0. Affected by this vulnerability is the     function createSlotImportJob of the file src/cluster_migrateslots.c of the component Slot Migration. The     manipulation of the argument job_name results in out-of-bounds read. The attack can be executed remotely.
    The exploit is now public and may be used. Upgrading to version 9.0.5 and 9.1.1 addresses this issue. The     patch is identified as f4dc3ca09eb650c2fe14060090a41c524eca803f. Upgrading the affected component is     advised. (CVE-2026-85522)

    A weakness has been identified in valkey-io valkey up to 9.0.5/9.1.1. This affects the function     kvstoreGetHashtable of the file src/kvstore.c. This manipulation of the argument didx causes out-of-bounds     read. It is possible to initiate the attack remotely. The attack is considered to have high complexity. It     is indicated that the exploitability is difficult. The exploit has been made available to the public and     could be used for attacks. Patch name: 4691888e7fab3df128f0bde5750c9fde2ae552fa. To fix this issue, it is     recommended to deploy a patch. Exploitation requires cluster mode plus attacker-controlled dump.rdb at     startup (data-dir write access, replication feed, or a stored crafted RDB) - an attacker-position DoS at     boot, not network pre-auth. The issue report was closed stating it is worth fixing for the sake of memory     safety... but I don't think it meets our bar for a security disclosure. (CVE-2026-86227)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8771-1 advisory.

    Madelyn Olson discovered that Valkey incorrectly handled TLS connections under certain conditions. A     remote attacker could possibly use this issue to cause Valkey to crash, resulting in a denial of service,     or execute arbitrary code. (CVE-2026-56684)

    It was discovered that Valkey incorrectly handled certain stream RDB payloads when executing the RESTORE     command. An authenticated remote attacker could possibly use this issue to cause Valkey to crash,     resulting in a denial of service, or execute arbitrary code. (CVE-2026-63639)

    It was discovered that Valkey incorrectly handled cluster slot migration operations. A remote attacker     could possibly use this issue to cause Valkey to crash, resulting in a denial of service. This issue was     only addressed in Ubuntu 26.04 LTS. (CVE-2026-85522)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A vulnerability was detected in valkey-io valkey up to 9.5.4/9.1.0. Affected by this vulnerability is the     function createSlotImportJob of the file src/cluster_migrateslots.c of the component Slot Migration. The     manipulation of the argument job_name results in out-of-bounds read. The attack can be executed remotely.
    The exploit is now public and may be used. Upgrading to version 9.0.5 and 9.1.1 addresses this issue. The     patch is identified as f4dc3ca09eb650c2fe14060090a41c524eca803f. Upgrading the affected component is     advised. (CVE-2026-85522)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
347941	Amazon Linux 2023 : valkey, valkey-devel (ALAS2023-2026-3091)	Nessus	Amazon Linux Local Security Checks	Local	medium
346984	Ubuntu 24.04 LTS / 26.04 LTS : Valkey vulnerabilities (USN-8771-1)	Nessus	Ubuntu Local Security Checks	Local	medium
343098	Linux Distros Unpatched Vulnerability : CVE-2026-85522	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-85522

medium

Tenable Plugins

medium

medium

medium