CVE-2026-39937 Details
Description
Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure. The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.
A vulnerability in the Wikimedia Foundation's MediaWiki CentralAuth Extension allows for the improper removal of sensitive information, such as email addresses, before storage or transfer. This issue leads to a resource leak by exposing residual sensitive data. The vulnerability affects non-release branches of the CentralAuth Extension.
The vulnerability has been addressed in version 1.46.0-wmf.16 of the MediaWiki CentralAuth Extension.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gerrit.wikimedia.org/r/q/I0b72427fa329aee85841a2cb23dec3058edce85e | wikimedia-foundation | |
| https://phabricator.wikimedia.org/T418122 | wikimedia-foundation |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-212 | Improper Removal of Sensitive Information Before Storage or Transfer | wikimedia-foundation |
Affected Products
No affected product data is available for this CVE.
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | wikimedia-foundation |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 8, 2026 | CVE Modified | wikimedia-foundation |
| Apr 7, 2026 | New CVE Received | wikimedia-foundation |