Missing Encryption of Sensitive Data Affecting firefox-esr package, versions <117.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.42% (35th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17763882
  • published1 Jul 2026
  • disclosed11 Sept 2023

Introduced: 11 Sep 2023

CVE-2023-4580  (opens in a new tab)
CWE-311  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 117.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

CVSS Base Scores

version 3.1