Detections
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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS : libsoup vulnerabilities (USN-8780-1)

medium Nessus Plugin ID 348241

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Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8780-1 advisory.

 It was discovered that libsoup incorrectly handled certain URLs when using an HTTP proxy. A remote attacker could possibly use this issue to inject arbitrary HTTP headers. (CVE-2026-1467)

 It was discovered that libsoup did not remove proxy authentication credentials when following HTTP redirects. A remote attacker could possibly use this issue to obtain sensitive information.
 (CVE-2026-1539)

 Ahmed Lekssays discovered that libsoup incorrectly parsed certain HTTP requests. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-1801)

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-8780-1

Plugin Details

Severity: Medium

ID: 348241

File Name: ubuntu_USN-8780-1.nasl

Version: 1.2

Type: Local

Agent: unix

Published: 9/18/2026

Updated: 9/21/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.1

Percentile: 53.58

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2026-1801

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:canonical:ubuntu_linux:pro:-:lts, p-cpe:/a:canonical:ubuntu_linux:gir1.2-soup-2.4, p-cpe:/a:canonical:ubuntu_linux:gir1.2-soup-3.0, p-cpe:/a:canonical:ubuntu_linux:libsoup-2.4-1, p-cpe:/a:canonical:ubuntu_linux:libsoup-3.0-0, p-cpe:/a:canonical:ubuntu_linux:libsoup-3.0-common, p-cpe:/a:canonical:ubuntu_linux:libsoup-3.0-tests, p-cpe:/a:canonical:ubuntu_linux:libsoup-gnome-2.4-1, p-cpe:/a:canonical:ubuntu_linux:libsoup-gnome2.4-1, p-cpe:/a:canonical:ubuntu_linux:libsoup2.4-1, p-cpe:/a:canonical:ubuntu_linux:libsoup2.4-common, p-cpe:/a:canonical:ubuntu_linux:libsoup2.4-tests

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/17/2026

Vulnerability Publication Date: 9/17/2026

Reference Information

CVE: CVE-2026-1467, CVE-2026-1539, CVE-2026-1801

USN: 8780-1