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openSUSE 16 Security Update : roundcubemail (openSUSE-SU-2026:20586-1)

high Nessus Plugin ID 309156

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-2026:20586-1 advisory.

 Changes in roundcubemail:

 - update to 1.6.15 This is a security update to the stable version 1.6 of Roundcube Webmail.
 It provides fixes to some regressions introduced in the previous release as well a recently reported security vulnerability:

 SVG Animate FUNCIRI Attribute Bypass Remote Image Loading via fill/filter/stroke, reported by class_nzm.

 This version is considered stable and we recommend to update all productive installations of Roundcube 1.6.x with it. Please do backup your data before updating!

 - Fix regression where mail search would fail on non-ascii search criteria (#10121)
 - Fix regression where some data url images could get ignored/lost (#10128)
 - Fix SVG Animate FUNCIRI Attribute Bypass Remote Image Loading via fill/filter/stroke (bsc#1261157)

 - update to 1.6.14 This is a security update to the stable version 1.6 of Roundcube Webmail.
 - Fix Postgres connection using IPv6 address (#10104)
 - Security: Fix pre-auth arbitrary file write via unsafe deserialization in redis/memcache session handler (bsc#1261488, CVE-2026-35537)
 - Security: Fix bug where a password could get changed without providing the old password
 - Security: Fix IMAP Injection + CSRF bypass in mail search
 - Security: Fix remote image blocking bypass via various SVG animate attributes
 - Security: Fix remote image blocking bypass via a crafted body background attribute
 - Security: Fix fixed position mitigation bypass via use of !important
 - Security: Fix XSS issue in a HTML attachment preview
 - Security: Fix SSRF + Information Disclosure via stylesheet links to a local network hosts

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 roundcubemail package.

See Also

https://bugzilla.suse.com/1261157

https://bugzilla.suse.com/1261488

https://www.suse.com/security/cve/CVE-2026-35537

Plugin Details

Severity: High

ID: 309156

File Name: openSUSE-2026-20586-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/22/2026

Updated: 4/22/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-35537

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:roundcubemail

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/17/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-35537