CVE-2023-6872 Affecting firefox-esr package, versions <121.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.65% (46th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17764872
  • published1 Jul 2026
  • disclosed19 Dec 2023

Introduced: 19 Dec 2023

CVE-2023-6872  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 121.0-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.

Browser tab titles were being leaked by GNOME to system logs. This could potentially expose the browsing habits of users running in a private tab. This vulnerability affects Firefox < 121.

CVSS Base Scores

version 3.1