We use these services and cookies to improve your user experience. You may opt out if you wish, however, this may limit some features on this site.
Please see our statement on Data Privacy.
A specially crafted filename containing a large number of encoded newline characters could obscure the file's extension when displayed in the download dialog. *This bug only affects Thunderbird for Android. Other versions of Thunderbird are unaffected.* This vulnerability affects Firefox < 138 and Thunderbird < 138.
Reserved 2025-04-29 | Published 2025-04-29 | Updated 2025-05-01 | Assigner mozillaSpecially crafted filename could be used to obscure download type
Hafiizh
bugzilla.mozilla.org/show_bug.cgi?id=1945705
www.mozilla.org/security/advisories/mfsa2025-28/
www.mozilla.org/security/advisories/mfsa2025-31/
Support options
