Authentication Bypass Affecting thunderbird package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.29% (70th percentile)

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  • Snyk IDSNYK-RHEL10-THUNDERBIRD-22252449
  • published6 Nov 2026
  • disclosed30 Sept 2019

Introduced: 30 Sep 2019

CVE-2019-11755  (opens in a new tab)
CWE-290  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 thunderbird.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.

CVSS Base Scores

version 3.1