ESB-2026.5630

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.5630 thunderbird security update 25 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: thunderbird Publisher: Debian Operating System: Debian GNU/Linux Resolution: Patch/Upgrade CVE Names: CVE-2026-8391 CVE-2026-8401 CVE-2026-8946 CVE-2026-8947 CVE-2026-8950 CVE-2026-8953 CVE-2026-8954 CVE-2026-8955 CVE-2026-8956 CVE-2026-8957 CVE-2026-8958 CVE-2026-8961 CVE-2026-8962 CVE-2026-8968 CVE-2026-8970 CVE-2026-8974 CVE-2026-8975 CVE-2026-8388 Original Bulletin: https://lists.debian.org/debian-lts-announce/2026/05/msg00039.html Comment: CVSS (Max): 9.8 CVE-2026-8401 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: CISA-ADP Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.1% (24th) CVE-2026-8401 2026-05-24 - --------------------------BEGIN INCLUDED TEXT-------------------- -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4594-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Emilio Pozuelo Monfort May 22, 2026 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : thunderbird Version : 1:140.11.0esr-1~deb11u1 CVE ID : CVE-2026-8388 CVE-2026-8391 CVE-2026-8401 CVE-2026-8946 CVE-2026-8947 CVE-2026-8950 CVE-2026-8953 CVE-2026-8954 CVE-2026-8955 CVE-2026-8956 CVE-2026-8957 CVE-2026-8958 CVE-2026-8961 CVE-2026-8962 CVE-2026-8968 CVE-2026-8970 CVE-2026-8974 CVE-2026-8975 Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code. For Debian 11 bullseye, these problems have been fixed in version 1:140.11.0esr-1~deb11u1. We recommend that you upgrade your thunderbird packages. For the detailed security status of thunderbird please refer to its security tracker page at: https://security-tracker.debian.org/tracker/thunderbird Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEcJymx+vmJZxd92Q+nUbEiOQ2gwIFAmoQcwIACgkQnUbEiOQ2 gwJicA//dVRjyStwZZi5GAmiCb0VzHvWv8yV0hCAaz6PK60rLVhfDC/ke0hzfznR /AVAVb+VmsLb3gu3kSYyNOtCA9xfAErc1vcM83fraNoC1uvtqY1z63EOtSOyeA9D fDbz+5Knr2w9PvQZwvrQX3wbCf5cVSPD0DxQeTyP0smCknr2cDWN7COXVD2A0h2i SbFyBzlZHhQNq3mS97OKzzsxvtbQdmsOrWlL0sjCU5/9FsUGKMmHaooPC1maaZb1 DpQcLpCZ0LMea6kfwXS+DDByFWDOeU8G106SuPasHDBxO/2GpLncYbNLJuxzzlNc ovRu7xxCAKa4TuC1PNQzR3KJDBNqXsD9E/v95rYtG5rrzYt1ALVFJizC7DX4rYH0 0CS8W2OFSAzwCNMyVMeRLabRmwr9yzQlzoo0jDPaFDisV4YGz1esMztgdY1uB4Yd dn3SnRC3MzV6gPBUuV0grsyE0sbsrHw+zX+ArAyPX0odKWdAm84ZKjO3Ea4ezjFe I5YoZy0Q9KV/RJLxBPsB/0OyTmzEhVKrMsAAC+AR5ijEjFcS2CI0x/sIZqjyxz3o KuwMPBt1cNWqBM5X02DgARP17rM8XcaDfFkasE3CZ94R01rLsuk+wZHlLzrvZqFv 8oipPXmMdtANCwyh8iOHVjjSlpjEFTxqBBaZYEkjdXBnMCXvorg= =UdFQ -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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