Upstream information

CVE-2026-118180 at MITRE

Description

When logging in to a Matrix account, Thunderbird used the homeserver address provided in the server's login response without validating it. A malicious or compromised homeserver could provide a file: URL, causing Thunderbird to send all further Matrix requests of that session to local files or, on Windows, to an attacker-controlled network share, which could leak the user's NTLM credentials.
The NTLM credential leak only affects Thunderbird on Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having not set severity.

No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Module for Package Hub 15 SP7
  • MozillaThunderbird >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-common >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-other >= 153.6.0-150400.13.14.1
SUSE Linux Enterprise Workstation Extension 15 SP7
  • MozillaThunderbird >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-common >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-other >= 153.6.0-150400.13.14.1
SUSE Linux Enterprise Server 15 SP7
  • MozillaThunderbird >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-common >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-other >= 153.6.0-150400.13.14.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • MozillaThunderbird >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-common >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-other >= 153.6.0-150400.13.14.1
SUSE Linux Enterprise Desktop 15 SP7
  • MozillaThunderbird >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-common >= 153.6.0-150400.13.14.1
  • MozillaThunderbird-translations-other >= 153.6.0-150400.13.14.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 MozillaThunderbird In progress
SUSE Linux Enterprise Module for Package Hub 15 SP7 MozillaThunderbird In progress
SUSE Linux Enterprise Server 15 SP7 MozillaThunderbird In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP7 MozillaThunderbird In progress
SUSE Linux Enterprise Workstation Extension 15 SP7 MozillaThunderbird In progress

SUSE Timeline for this CVE

CVE page created: Thu Oct 29 12:58:59 2026
CVE page last modified: Thu Oct 29 12:58:59 2026