CVE-2025-4090: Insertion of Sensitive Information into Log File

A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. This vulnerability was fixed in Firefox 138 and Thunderbird 138...

CVE-2025-4086: User Interface (UI) Misrepresentation of Critical Information

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 was fixed in Firefox 138...