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openSUSE 16 Security Update : elemental-system-agent (openSUSE-SU-2026:20924-1)

critical Nessus Plugin ID 320422

Synopsis

The remote openSUSE host is missing a security update.

Description

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:20924-1 advisory.

 This update for elemental-system-agent fixes the following issue

 - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2:
 path pseudo- header (bsc#1260277).

 Changes:

 - Update to version 0.3.16:
 * setup for immutable releases (#274)
 * align system-agent image publishing for signed releases (#270)
 * Bumo github.com/docker/cli to v29.2.0 and go.opentelemetry.io/otel to v1.43.0
 * run go mod tidy in /test folder
 * Bump google.golang.org/grpc from 1.75.0 to 1.79.3 (bsc#1260277 CVE-2026-33186)
 * Bump github.com/docker/cli in /test
 * export CATTLE_NODE_NAME if SYSTEM_UPGRADE_NODE_NAME is set
 * use correct prefix for system-agent binary (#273)
 * checksum validation (#271)
 * Add `validate` subcommand for configuration validation (#250)
 * Update CODEOWNERS
 * Pin GH Actions to commit sha
 * chore: bump sles to 15.7
 * Extend remote plan e2e tests
 * Fix agent restart issue and introduce constants
 * chore: bump go to v1.25
 * Setup e2e test infrastructure
 * chores(deps): Bump k8s dependencies
 * Define linter rules
 * Fix CI failures
 * Introduce an extended Makefile
 * Switch workflows to use name makefile
 * Replace dapper with multi stage builds
 * Remove dapper scripts
 * Add multiple improvements for ignore files
 * fix: remove umask command from the system-agent unit-file
 * fix-system-agent-umask
 * [1.34] bumped dependencies for 1.34 support (#242)
 * Bump K8s patch level to 1.33.5 and Go patch level to 1.24.6
 * fix: properly handle traps after unsuccessful SUC job execution
 * fix: do not unconditionally reset failure-counts
 * fix: remove resetFailureCountOnStartup, always reset failure counts on first start
 * un-rc wrangler and lasso
 * drop windows 2019 when running PR CI

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

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

Solution

Update the affected elemental-system-agent package.

See Also

https://bugzilla.suse.com/1260277

https://www.suse.com/security/cve/CVE-2026-33186

Plugin Details

Severity: Critical

ID: 320422

File Name: openSUSE-2026-20924-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/11/2026

Updated: 6/11/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-33186

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:elemental-system-agent

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/8/2026

Vulnerability Publication Date: 3/18/2026

Reference Information

CVE: CVE-2026-33186