CVE-2026-42095

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

Published: 2026-04-24 Last update: 2026-04-24 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-42095 is rated Low Risk (16.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.12%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-42095

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.12% +0.11%
2 2026-04-25 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-42095

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.5 1.4 [email protected]

Weakness enumeration for CVE-2026-42095

GitHub Security Advisory for CVE-2026-42095

GHSA-7824-f4f9-2x77 · Severity: medium — bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection...

OS Trackers for CVE-2026-42095

vendor priority summary link
debian not yet assigned CVE-2026-42095 not yet assigned priority: Debian including 1 source packages (arianna), 3 status rows across 3 suites (forky, sid, trixie): resolved 2, open 1. https://security-tracker.debian.org/tracker/CVE-2026-42095
ubuntu medium CVE-2026-42095 medium priority: Ubuntu including 1 source packages (arianna), 5 status rows across 5 suites (jammy, noble, questing, resolute, upstream): DNE 2, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2026-42095

Affected software / configurations for CVE-2026-42095

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-42095

cvelogic Threat Intelligence