More information about this CVE will likely be available in a few days

Description


A remote RSS feed could use the itunes:new-feed-url or newLocation element to permanently change its stored subscription URL to a file: URL. Thunderbird then read that location on every feed update. This allowed a malicious feed, or an attacker able to modify a feed delivered over HTTP, to make Thunderbird read local files and, on Windows, connect 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 affected by the local file read only. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.

Related CPE's


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Weaknesses


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Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-27T19:17:29.480Z

21 hours ago

Last modified

2026-10-28T14:42:32.260Z

1 hour ago