Global vanishing does not completely remove user email_CVE-2026-39937

8.8 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L

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.

Basic Information

ID CVE-2026-39937

Source wikimedia-foundation

Published Apr 7, 2026 at 21:44

Modified Apr 8, 2026 at 21:58

Affected Product

Vendor The Wikimedia Foundation

Product Mediawiki - CentralAuth Extension

Version 1.43

Affected Versions The Wikimedia Foundation Mediawiki - CentralAuth Extension 0

CWE Classification

CWE-212

References

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    "lastseen": "",
    "description": "Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure.\u00a0The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.",
    "published": "2026-04-07T21:44:46.515Z",
    "modified": "2026-04-08T21:58:19.900Z",
    "type": "cve",
    "title": "Global vanishing does not completely remove user email",
    "source": "wikimedia-foundation",
    "references": "https://phabricator.wikimedia.org/T418122\nhttps://gerrit.wikimedia.org/r/q/I0b72427fa329aee85841a2cb23dec3058edce85e",
    "id": "CVE-2026-39937",
    "bulletinFamily": "",
    "cwe": [
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    "cvelist": null,
    "sourceData": "The Wikimedia Foundation Mediawiki - CentralAuth Extension 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Mediawiki - CentralAuth Extension",
    "version": "1.43",
    "vendor": "The Wikimedia Foundation",
    "ai_description": "",
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    "ai_vendor": "",
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    "ai_score": 0
}