CVE-2026-34088

Publication date 11 May 2026

Last updated 10 July 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

Status

Package Ubuntu Release Status
mediawiki 26.04 LTS resolute
Fixed 1:1.43.8+dfsg-2
25.10 questing Ignored end of life, was needed
24.04 LTS noble
Fixed 1:1.39.7-1ubuntu0.1~esm1
22.04 LTS jammy
Fixed 1:1.35.6-1ubuntu0.1~esm1
20.04 LTS focal
Fixed 1:1.31.7-1ubuntu0.1~esm1
18.04 LTS bionic
Not affected

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Severity score breakdown

CVSS version:

Base score 1.3 · Low

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/R:U/RE:M

Base score 7.5 · High

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-8315-1
    • MediaWiki vulnerabilities
    • 27 May 2026

Other references

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