CVE-2026-118179
Published:October 27, 2026
Updated:November 04, 2026
Clicking a news: or snews: link that referenced a message-ID made Thunderbird connect, without asking, to the host and port given in the link, even if it was not a configured news server. Line breaks in the message-ID were sent to the server unmodified, so a crafted link could send arbitrary commands to services reachable from the user's network. In addition, snews: links to such servers connected without TLS. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.
Affected Packages
https://github.com/thunderbird/thunderbird-desktop.git (GITHUB):
Affected version(s) >=THUNDERBIRD_38_0b6_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_60_0_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_68_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_78_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_82_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_87_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_88_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_89_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_90_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_91_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_92_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_93_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_94_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_95_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_96_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_97_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_98_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_99_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_100_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_101_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_102_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_103_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_104_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_105_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_106_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_107_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_108_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_109_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_110_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_111_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_112_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_113_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_114_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_115_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_116_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_117_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_118_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_119_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_120_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_121_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_122_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_123_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_124_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_125_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_126_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_127_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_128_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_129_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_130_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_131_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_132_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_133_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_134_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_135_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_136_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_137_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_138_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_139_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_140_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_141_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_142_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_143_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_144_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_145_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_146_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_147_0b1_BUILD1 <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_148_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_149_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_150_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_151_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_152_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASE || >=THUNDERBIRD_153_0b1_RELEASE <THUNDERBIRD_153_6_0esr_RELEASEFix Suggestion:
Update to version THUNDERBIRD_153_6_0esr_RELEASEhttps://github.com/thunderbird/thunderbird-desktop.git (GITHUB):
Affected version(s) >=THUNDERBIRD_154_0b1_RELEASE <THUNDERBIRD_159_0_RELEASE || >=THUNDERBIRD_155_0b1_RELEASE <THUNDERBIRD_159_0_RELEASE || >=THUNDERBIRD_156_0b1_RELEASE <THUNDERBIRD_159_0_RELEASE || >=THUNDERBIRD_157_0b1_RELEASE <THUNDERBIRD_159_0_RELEASE || >=THUNDERBIRD_158_0b1_RELEASE <THUNDERBIRD_159_0_RELEASEFix Suggestion:
Update to version THUNDERBIRD_159_0_RELEASERelated Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
0.18