CVE-2026-34087
High
Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation OATHAuth. This issue affects OATHAuth: from * before 1.43.7, 1.44.4, 1.45.2.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Mediawiki
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- mediawiki mediawiki1.43.7, 1.44.4, 1.45.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mediawiki mediawiki | v < 1.43.7, 1.44.0 ≤ v < 1.44.4, 1.45.0 ≤ v < 1.45.2 | 1.43.7, 1.44.4, 1.45.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.