CVE-2026-39934
Medium
Description
Loop with unreachable exit condition ('infinite loop') vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions. This issue was remediated only on the `master` branch.
SeverityMedium
CVSS6.9
Exploit probability—
ProductMediawiki - GrowthExperiments Extension
PublishedApr 7, 2026
First seenApr 7, 2026
Weakness typeCWE-835CWE-835
How to fix
Update
- The Wikimedia Foundation Mediawiki - GrowthExperiments Extension1.43 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| The Wikimedia Foundation Mediawiki - GrowthExperiments Extension | 1.45, 1.44, 1.43, v < 1.43 | 1.43 |
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