What is CVE-2026-34095?

CVE-2026-34095 is a medium-severity vulnerability in Mediawiki, classified under Exposure of Resource to Wrong Sphere. CVSS score: 6.1/10. Published 2026-05-11.

How severe is CVE-2026-34095?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Mediawiki

CVE-2026-34095

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4…

EPSS: 0.000 (10.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Mediawiki
Wikimedia Foundation Mediawiki

Weakness classification (CWE)

CWE-668 — Exposure of Resource to Wrong Sphere

References

c4f26cc8-17ff-4c99-b5e2-38fc1793eacc (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34095?: CVE-2026-34095 is a medium-severity vulnerability in Mediawiki, classified under Exposure of Resource to Wrong Sphere. CVSS score: 6.1/10. Published 2026-05-11.
How severe is CVE-2026-34095?: Medium severity. CVSS v3 base score is 6.1 out of 10.