Description
Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
Published: 2018-06-11
Score: 5.9 Medium
EPSS: 1.3% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1308-1 firefox-esr security update
Debian DSA Debian DSA DSA-4139-1 firefox-esr security update
EUVD EUVD EUVD-2018-16917 Under certain circumstances the "fetch()" API can return transient local copies of resources that were sent with a "no-store" or "no-cache" cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
Ubuntu USN Ubuntu USN USN-3596-1 Firefox vulnerabilities
History

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr

Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Mozilla Firefox
Redhat Enterprise Linux Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server Eus Enterprise Linux Workstation
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T05:26:46.949Z

Reserved: 2018-01-03T00:00:00.000Z

Link: CVE-2018-5131

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-06-11T21:29:14.157

Modified: 2025-11-25T17:50:16.803

Link: CVE-2018-5131

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-03-14T00:00:00Z

Links: CVE-2018-5131 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses