PT-2026-31043 · Mediawiki · Growthexperiments Extension For Mediawiki

Michael + 1 · Published 2026-04-07 · Updated 2026-04-08 · CVE-2026-39934

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Name of the Vulnerable Software and Affected Versions Mediawiki - GrowthExperiments Extension versions 1.45.2, 1.44.4, and 1.43.7

Description The Mediawiki - GrowthExperiments Extension contains a flaw related to an infinite loop. This condition can be leveraged to create Time-of-Check and Time-of-Use (TOCTOU) race conditions.

Recommendations Update to a newer version of the Mediawiki - GrowthExperiments Extension that addresses this issue.

Fix

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2026-39934

Affected Products

Growthexperiments Extension For Mediawiki

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-39934 · Security Note
• https://twitter.com/CVEnew/status/2041711857657139519 · Twitter Post
• https://gerrit.wikimedia.org/r/c/1243874 · Note
• https://phabricator.wikimedia.org/T418222 · Note