CVE-2026-42095

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection...

4.0 MediumFix available

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.16%Up 0.1 points since Apr 25, 2026

What each source reports

CVE List Score used 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: CVE-2026-42095
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-306
Updated: 2026-11-02

EUVDEUVD-2026-25566 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: EUVD-2026-25566
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-7824-f4f9-2x77 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection...

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: GHSA-7824-f4f9-2x77
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-306
Updated: 2026-11-02

NVD 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: CVE-2026-42095
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-306
Updated: 2026-11-02

OSV 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: CVE-2026-42095
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-306
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-42095 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: DEBIAN-CVE-2026-42095
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-42095 4.0

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Record: UBUNTU-CVE-2026-42095
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVopenSUSE-SU-2026:10653-1 No score

arianna-26.04.0-2.1 on GA media

These are all security issues fixed in the arianna-26.04.0-2.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2026:10653-1
Updated: 2026-11-02

Affected products

kde arianna

Affected packages

Affected packages
Package	Affected	Fixed
`arianna` Debian:13	All versions, plus listed versions 25.04.0-125.12.3-125.12.3-226.04.0-1	None known
`arianna` Debian:14	before 25.12.3-2, plus listed versions 25.04.0-125.12.3-1	25.12.3-2
`arianna` Ubuntu:25.10	All versions, plus listed versions 24.12.3-0ubuntu125.04.0-0ubuntu125.04.1-0ubuntu125.04.2-0ubuntu125.04.3-0ubuntu1 Show 4 moreShow less 25.07.80-0ubuntu125.07.90-0ubuntu125.08.0-0ubuntu125.08.1-0ubuntu1	None known
`arianna` Ubuntu:26.10	All versions, plus listed versions 25.12.3-0ubuntu126.04.0-1ubuntu126.04.1-0ubuntu126.04.2-0ubuntu126.04.3-0ubuntu1 Show 4 moreShow less 26.07.90-0ubuntu126.08.0-0ubuntu126.08.0-0ubuntu226.08.1-0ubuntu1	None known
`arianna` Ubuntu:26.04:LTS	All versions, plus listed versions 25.08.1-0ubuntu125.08.2-0ubuntu125.08.3-0ubuntu125.11.80-0ubuntu125.11.90-0ubuntu1 Show 5 moreShow less 25.12.0-0ubuntu125.12.1-0ubuntu125.12.1-0ubuntu225.12.2-0ubuntu125.12.3-0ubuntu1	None known
`arianna` openSUSE:Tumbleweed	before 26.04.0-2.1	26.04.0-2.1

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-42095 is a medium vulnerability (CVSS 4.0) in Kde Arianna, published April 24, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. Fixed in arianna 25.12.3-2.

References

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