CVE-2026-16374

Information disclosure in the Framework component in DevTools

Published Jul 21, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4695-1 firefox-esr security update
Debian DLA Debian DLA DLA-4727-1 thunderbird security update
Debian DSA Debian DSA DSA-6394-1 firefox-esr security update
Debian DSA Debian DSA DSA-6418-1 thunderbird security update
History
Type Values Removed Values Added
Description Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13. Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
References
Type Values Removed Values Added
Weaknesses CWE-200
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox
Type Values Removed Values Added
Description Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.
Title Information disclosure in the Framework component in DevTools
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Jul 22, 2026, 7:18 PM
Reserved
Jul 20, 2026, 9:56 PM
Status
Analyzed
Published
Jul 21, 2026, 1:17 PM
Modified
Oct 24, 2026, 8:10 PM
Severity
Moderate
Public date
Jul 21, 2026, 12:37 PM