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Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : Octavia vulnerabilities (USN-8814-1)

critical Nessus Plugin ID 350174

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Synopsis

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

Description

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8814-1 advisory.

 It was discovered that Octavia did not properly validate TLS cipher string fields in the Amphora provider driver. An authenticated attacker who owns a TLS-enabled load balancer could possibly use this issue to inject arbitrary HAProxy configuration directives. (CVE-2026-94572)

 It was discovered that Octavia did not properly validate L7 policy redirect URL fields in the Amphora provider driver. An authenticated attacker who owns a load balancer could possibly use this issue to inject arbitrary HAProxy configuration directives. (CVE-2026-94571)

 It was discovered that Octavia incorrectly handled quality of service policy authorization. An authenticated attacker could possibly use this issue to prevent deletion of another project's QoS policy.
 (CVE-2026-74248)

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.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-8814-1

Plugin Details

Severity: Critical

ID: 350174

File Name: ubuntu_USN-8814-1.nasl

Version: 1.2

Type: Local

Agent: unix

Published: 9/25/2026

Updated: 9/25/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.32

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-74248

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:N/I:L/A:N

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

CVSS v4

Risk Factor: Critical

Base Score: 9.4

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS Score Source: CVE-2026-94572

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:amphora-agent, p-cpe:/a:canonical:ubuntu_linux:octavia-api, p-cpe:/a:canonical:ubuntu_linux:octavia-common, p-cpe:/a:canonical:ubuntu_linux:octavia-driver-agent, p-cpe:/a:canonical:ubuntu_linux:octavia-health-manager, p-cpe:/a:canonical:ubuntu_linux:octavia-housekeeping, p-cpe:/a:canonical:ubuntu_linux:octavia-worker, p-cpe:/a:canonical:ubuntu_linux:python3-octavia

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2026

Vulnerability Publication Date: 8/14/2026

Reference Information

CVE: CVE-2026-74248, CVE-2026-94571, CVE-2026-94572

USN: 8814-1