Skip to main content
VulnerabilityPublished

CVE-2026-42095: KDE Arianna · Missing Authentication

Affects KDE AriannaSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 4.0 Medium : upgrade to 26.04.1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
4.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 26.04.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade KDE Arianna to 26.04.1.

Affected software

ProductAffectedFixed in
KDEAriannaAffected
  • <26.04.1
Fixed in
  • 26.04.1

AI-suggested

If you cannot patch yet, restrict access to the bookserver component to trusted users only and monitor for suspicious local activity. Avoid exposing the vulnerable service to untrusted networks.

Description

CVE-2026-42095 is a medium severity vulnerability in KDE Arianna's bookserver component before version 26.04.1. It allows attackers to read files over a socket connection by guessing a URL due to missing authentication on a critical function. The vulnerability does not require user interaction or privileges and has a low complexity for exploitation. There is no confirmed patch or official remediation available at this time.

References

Community reviews

Loading reviews…