CVE-2023-49060 Affecting firefox-esr package, versions <120.0-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.64% (46th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17763973
  • published1 Jul 2026
  • disclosed21 Nov 2023

Introduced: 21 Nov 2023

CVE-2023-49060  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 120.0-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.

An attacker could have accessed internal pages or data by ex-filtrating a security key from ReaderMode via the referrerpolicy attribute. This vulnerability affects Firefox for iOS < 120.

CVSS Base Scores

version 3.1