Directory Traversal Affecting thunderbird package, versions <1:115.5.0-1~deb12u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.41% (70th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18318739
  • published26 Jul 2026
  • disclosed21 Nov 2023

Introduced: 21 Nov 2023

CVE-2023-6209  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:115.5.0-1~deb12u1 or higher.

NVD Description

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

Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVSS Base Scores

version 3.1