Detections
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AlmaLinux 9 : valkey (ALSA-2026:64807)

high Nessus Plugin ID 344333

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:64807 advisory.

 * redis: Redis: Remote Code Execution via specially crafted RESTORE payload (CVE-2026-66373)
 * valkey: Valkey: Remote code execution via use-after-free in stream deserialization (CVE-2026-63639)
 * valkey: Valkey: Remote code execution via TLS pending-data processing use-after-free (CVE-2026-56684)


 Bug Fix(es) and Enhancement(s):

 * [Tracker] Rebase valkey to 8.0.10 (JIRA:AlmaLinux-216778)

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

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

Solution

Update the affected valkey and / or valkey-devel packages.

See Also

https://access.redhat.com/errata/RHSA-2026:64807

https://errata.almalinux.org/9/ALSA-2026-64807.html

Plugin Details

Severity: High

ID: 344333

File Name: alma_linux_ALSA-2026-64807.nasl

Version: 1.1

Type: Local

Published: 9/9/2026

Updated: 9/9/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.2

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-63639

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:valkey-devel, p-cpe:/a:alma:linux:valkey

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-56684, CVE-2026-63639, CVE-2026-66373

CWE: 1341, 825

RHSA: 2026:64807