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ALSA-2025:8196 — Important: thunderbird security update

Affected: AlmaLinux:10: thunderbird

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

* thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909) * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875) * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links (CVE-2025-3877) * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2025-08557

certfr-2025-avi-0411 — De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un atta…

certfr-2025-avi-0411

EUVD-2026-290713

fkie_cve-2025-3932

It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in the X-Mozilla-External-Attachment-URL header of an email. This vulnerability was fixed in Thunderbird 128.10.1 and Thunderbird 138.0.1.

GHSA-jfxg-6gv4-f2gh

It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in the X-Mozilla-External-Attachment-URL header of an email. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1.

OESA-2025-1835 — thunderbird security update

Affected: openEuler:24.03-LTS-SP2: thunderbird

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fix(es):

A permission leak could have occurred from a trusted site to an untrusted site via `embed` or `object` elements. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10458)

An attacker could have caused a use-after-free when accessibility was enabled, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10459)

The origin of an external protocol handler prompt could have been obscured using a data: URL within an `iframe`. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10460)

In multipart/x-mixed-replace responses, `Content-Disposition: attachment` in the response header was not respected and did not force a download, which could allow XSS attacks. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10461)

Truncation of a long URL could have allowed origin spoofing in a permission prompt. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10462)

Video frames could have been leaked between origins in some situations. Thi…

openSUSE-SU-2025:15131-1 — MozillaThunderbird-128.10.1-1.1 on GA media

MozillaThunderbird-128.10.1-1.1 on GA media

RHSA-2025:8196 — Red Hat Security Advisory: thunderbird security update

thunderbird: Sender Spoofing via Malformed From Header in Thunderbird thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking

SUSE-SU-2025:01660-1 — Security update for MozillaThunderbird

Security update for MozillaThunderbird

UBUNTU-CVE-2025-3932

Affected: Ubuntu:22.04:LTS: thunderbird

WID-SEC-W-2025-1062 — Mozilla Thunderbird: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Thunderbird ausnutzenum beliebigen Programmcode auszuführen, vertrauliche Informationen preiszugeben, einen Denial-of-Service-Zustand herbeizuführen oder Absender-Spoofing durchzuführen und Sicherheitsmaßnahmen zu umgehen.