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AlmaLinux 9.2 [TuxCare] Security Update: grafana Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1788279341)

medium Nessus Plugin ID 360003

Synopsis

The AlmaLinux host is missing one or more security updates.

Description

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1788279341 advisory.

 - A user with Viewer permissions can use specially crafted requests to the Tempo and Loki data source plugins to reach unintended backend endpoints. Depending on the backend configuration this can expose data source credentials, leak internal responses, or trigger administrative actions on the configured backend.
 (CVE-2026-10601)

 - The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to out-of-memory conditions. An authenticated user with access to the Grafana Live API can trigger this issue. (CVE-2026-28376)

 - A race condition in Grafana Live allows authenticated users with Viewer role to trigger a server crash by sending concurrent requests that cause a fatal map access error. This results in complete service unavailability requiring restart of the Grafana server. (CVE-2026-28379)

 - A request to the Grafana plugin resources endpoint can cause unbounded memory allocation by reading the entire request body into memory. An authenticated user can exploit this to trigger an out-of-memory condition, potentially causing a denial of service. (CVE-2026-28383)

 - Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures. (CVE-2026-33818)

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 grafana package based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1788279341.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1788279341

http://www.nessus.org/u?67f9fb9f

Plugin Details

Severity: Medium

ID: 360003

File Name: tuxcare_alma_linux_9.2_CLSA-2026-1788279341.nasl

Version: 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.28

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-10601

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-10601, CVE-2026-28376, CVE-2026-28379, CVE-2026-28383, CVE-2026-33818, CVE-2026-39820, CVE-2026-42499, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862

CLSA: 2026:1788279341