CVE-2026-118176
CVE-2026-118176 · Bypass of remote UNC path restriction in mailbox: URLs
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
Thunderbird's check that prevents mailbox: URLs from accessing files on remote Windows network shares could be bypassed using extended-length UNC paths. Displaying a specially crafted email could cause Thunderbird to connect to an SMB server chosen by the attacker, disclosing the user's Windows account name and NTLM authentication data, which could be used for offline password cracking or relay attacks. This bug only affects Thunderbird on Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.
EPSS 0.2%
- Published
- Updated
Stack: system
Affected products and versions
thunderbird
- Versions
- ≥ 153.6, ≤ 153.*: Not affected (rpm)
- ≥ 159: Not affected (rpm)
No fix published
thunderbird Debian:12
- Versions
- 1:102.11.0-1
- 1:102.12.0-1
- 1:102.12.0-1~deb10u1
- 1:102.12.0-1~deb11u1
- 1:102.12.0-1~deb12u1
- 1:102.13.0-1
- 1:102.13.0-1~deb10u1
- 1:102.13.0-1~deb11u1
- 1:102.13.0-1~deb12u1
- 1:102.13.1-1
- 1:102.13.1-1~deb10u1
- 1:102.13.1-1~deb11u1
- 1:102.13.1-1~deb12u1
- 1:102.14.0-1~deb10u1
- 1:102.14.0-1~deb11u1
- 1:102.14.0-1~deb12u1
- 1:102.15.0-1~deb10u1
- 1:102.15.0-1~deb11u1
- 1:102.15.0-1~deb12u1
- 1:102.15.1-1~deb10u1
- 1:102.15.1-1~deb11u1
- 1:102.15.1-1~deb12u1
- 1:103.0~b5-1
- 1:104.0~b2-1
- 1:110.0~b4-1
- 1:112.0~b1-1
- 1:113.0~b3-1
- 1:114.0~b2-1
- 1:115.0-1
- 1:115.0.1-1
- 1:115.0.1-2
- 1:115.0~b4-1
- 1:115.0~b6-1
- 1:115.1.0-1
- 1:115.1.1-1
- 1:115.10.1-1
- 1:115.10.1-1~deb10u1
- 1:115.10.1-1~deb11u1
- 1:115.10.1-1~deb12u1
- 1:115.11.0-1
- 1:115.11.0-1~deb10u1
- 1:115.11.0-1~deb11u1
- 1:115.11.0-1~deb12u1
- 1:115.12.0-1
- 1:115.12.0-1~deb10u1
- 1:115.12.0-1~deb11u1
- 1:115.12.0-1~deb12u1
- 1:115.13.0-1
- 1:115.13.0-1~deb11u1
- 1:115.13.0-1~deb12u1
- 1:115.14.0-1~deb11u1
- 1:115.14.0-1~deb12u1
- 1:115.15.0-1~deb11u1
- 1:115.15.0-1~deb12u1
- 1:115.16.0esr-1~deb11u1
- 1:115.16.0esr-1~deb12u1
- 1:115.2.0-1
- 1:115.2.2-1
- 1:115.3.0-1
- 1:115.3.0-1~deb12u1
- 1:115.3.1-1
- 1:115.3.1-1~deb10u1
- 1:115.3.1-1~deb11u1
- 1:115.3.1-1~deb12u1
- 1:115.4.1-1
- 1:115.4.1-1~deb10u1
- 1:115.4.1-1~deb11u1
- 1:115.4.1-1~deb12u1
- 1:115.5.0-1
- 1:115.5.0-1~deb10u1
- 1:115.5.0-1~deb11u1
- 1:115.5.0-1~deb12u1
- 1:115.5.1-1
- 1:115.5.2-1
- 1:115.6.0-1
- 1:115.6.0-1~deb10u1
- 1:115.6.0-1~deb11u1
- 1:115.6.0-1~deb12u1
- 1:115.7.0-1
- 1:115.7.0-1~deb10u1
- 1:115.7.0-1~deb11u1
- 1:115.7.0-1~deb12u1
- 1:115.8.0-1
- 1:115.8.0-1~deb10u1
- 1:115.8.0-1~deb11u1
- 1:115.8.0-1~deb12u1
- 1:115.8.1-1
- 1:115.9.0-1
- 1:115.9.0-1~deb10u1
- 1:115.9.0-1~deb11u1
- 1:115.9.0-1~deb12u1
- 1:116.0~b7-1
- 1:117.0~b5-1
- 1:120.0~b1-1
- 1:121.0~b3-1
- 1:122.0~b2-1
- 1:124.0~b5-1
- 1:125.0~b3-1
- 1:127.0~b5-1
- 1:128.0esr-1
- 1:128.0~b5-1
- 1:128.1.0esr-1
- 1:128.1.1esr-1
- 1:128.10.0esr-1
- 1:128.10.0esr-1~deb11u1
- 1:128.10.0esr-1~deb12u1
- 1:128.10.1esr-1
- 1:128.10.1esr-1~deb11u1
- 1:128.10.1esr-1~deb12u1
- 1:128.11.0esr-1
- 1:128.11.0esr-1~deb11u1
- 1:128.11.0esr-1~deb12u1
- 1:128.12.0esr-1
- 1:128.12.0esr-1~deb11u1
- 1:128.12.0esr-1~deb12u1
- 1:128.13.0esr-1
- 1:128.13.0esr-1~deb11u1
- 1:128.13.0esr-1~deb12u1
- 1:128.14.0esr-1
- 1:128.14.0esr-1~deb11u1
- 1:128.14.0esr-1~deb12u1
- 1:128.14.0esr-1~deb13u1
- 1:128.2.0esr-1
- 1:128.2.1esr-1
- 1:128.2.3esr-1
- 1:128.3.0esr-1
- 1:128.3.2esr-1
- 1:128.4.0esr-1
- 1:128.4.0esr-1~deb11u1
- 1:128.4.0esr-1~deb12u1
- 1:128.4.2esr-1
- 1:128.4.3esr-1
- 1:128.4.3esr-1~deb11u1
- 1:128.4.3esr-1~deb12u1
- 1:128.5.0esr-1
- 1:128.5.0esr-1~deb11u1
- 1:128.5.0esr-1~deb12u1
- 1:128.5.2esr-1
- 1:128.6.0esr-1
- 1:128.6.0esr-1~deb11u1
- 1:128.6.0esr-1~deb12u1
- 1:128.7.0esr-1
- 1:128.7.0esr-1~deb11u1
- 1:128.7.0esr-1~deb12u1
- 1:128.8.0esr-1
- 1:128.8.0esr-1~deb11u1
- 1:128.8.0esr-1~deb12u1
- 1:128.9.0esr-1
- 1:128.9.0esr-1~deb11u1
- 1:128.9.0esr-1~deb12u1
- 1:129.0~b6-1
- 1:130.0~b3-1
- 1:132.0~b6-1
- 1:135.0-1
- 1:136.0-1
- 1:137.0-1
- 1:138.0-1
- 1:140.0.1esr-1
- 1:140.1.0esr-1
- 1:140.1.1esr-1
- 1:140.10.0esr-1
- 1:140.10.0esr-1~deb11u1
- 1:140.10.0esr-1~deb12u1
- 1:140.10.0esr-1~deb13u1
- 1:140.10.1esr-1
- 1:140.10.1esr-1~deb11u1
- 1:140.10.1esr-1~deb12u1
- 1:140.10.1esr-1~deb13u1
- 1:140.10.2esr-1
- 1:140.10.2esr-1~deb11u1
- 1:140.10.2esr-1~deb12u1
- 1:140.10.2esr-1~deb13u1
- 1:140.11.0esr-1
- 1:140.11.0esr-1~deb11u1
- 1:140.11.0esr-1~deb12u1
- 1:140.11.0esr-1~deb13u1
- 1:140.12.0esr-1
- 1:140.12.0esr-1~deb11u1
- 1:140.12.0esr-1~deb12u1
- 1:140.12.0esr-1~deb13u1
- 1:140.13.0esr-1
- 1:140.13.0esr-2
- 1:140.13.0esr-2~deb11u1
- 1:140.13.0esr-2~deb12u1
- 1:140.13.0esr-2~deb13u1
- 1:140.14.0esr-1
- 1:140.14.0esr-1~deb11u1
- 1:140.14.0esr-1~deb12u1
- 1:140.14.0esr-1~deb13u1
- 1:140.15.0esr-1~deb12u1
- 1:140.15.0esr-1~deb13u1
- 1:140.16.0esr-1~deb12u1
- 1:140.16.0esr-1~deb13u1
- 1:140.17.0esr-1~deb12u1
- 1:140.17.0esr-1~deb13u1
- 1:140.2.0esr-1
- 1:140.3.0esr-1
- 1:140.3.0esr-1~deb11u1
- 1:140.3.0esr-1~deb12u1
- 1:140.3.0esr-1~deb13u1
- 1:140.3.1esr-1
- 1:140.4.0esr-1
- 1:140.4.0esr-1~deb11u1
- 1:140.4.0esr-1~deb12u1
- 1:140.4.0esr-1~deb13u1
- 1:140.5.0esr-1
- 1:140.5.0esr-1~deb11u1
- 1:140.5.0esr-1~deb12u1
- 1:140.5.0esr-1~deb13u1
No fix published
thunderbird Debian:13
- Versions
- 1:128.13.0esr-1
- 1:128.14.0esr-1
- 1:128.14.0esr-1~deb11u1
- 1:128.14.0esr-1~deb12u1
- 1:128.14.0esr-1~deb13u1
- 1:129.0~b6-1
- 1:130.0~b3-1
- 1:132.0~b6-1
- 1:135.0-1
- 1:136.0-1
- 1:137.0-1
- 1:138.0-1
- 1:140.0.1esr-1
- 1:140.1.0esr-1
- 1:140.1.1esr-1
- 1:140.10.0esr-1
- 1:140.10.0esr-1~deb11u1
- 1:140.10.0esr-1~deb12u1
- 1:140.10.0esr-1~deb13u1
- 1:140.10.1esr-1
- 1:140.10.1esr-1~deb11u1
- 1:140.10.1esr-1~deb12u1
- 1:140.10.1esr-1~deb13u1
- 1:140.10.2esr-1
- 1:140.10.2esr-1~deb11u1
- 1:140.10.2esr-1~deb12u1
- 1:140.10.2esr-1~deb13u1
- 1:140.11.0esr-1
- 1:140.11.0esr-1~deb11u1
- 1:140.11.0esr-1~deb12u1
- 1:140.11.0esr-1~deb13u1
- 1:140.12.0esr-1
- 1:140.12.0esr-1~deb11u1
- 1:140.12.0esr-1~deb12u1
- 1:140.12.0esr-1~deb13u1
- 1:140.13.0esr-1
- 1:140.13.0esr-2
- 1:140.13.0esr-2~deb11u1
- 1:140.13.0esr-2~deb12u1
- 1:140.13.0esr-2~deb13u1
- 1:140.14.0esr-1
- 1:140.14.0esr-1~deb11u1
- 1:140.14.0esr-1~deb12u1
- 1:140.14.0esr-1~deb13u1
- 1:140.15.0esr-1~deb12u1
- 1:140.15.0esr-1~deb13u1
- 1:140.16.0esr-1~deb12u1
- 1:140.16.0esr-1~deb13u1
- 1:140.17.0esr-1~deb12u1
- 1:140.17.0esr-1~deb13u1
- 1:140.2.0esr-1
- 1:140.3.0esr-1
- 1:140.3.0esr-1~deb11u1
- 1:140.3.0esr-1~deb12u1
- 1:140.3.0esr-1~deb13u1
- 1:140.3.1esr-1
- 1:140.4.0esr-1
- 1:140.4.0esr-1~deb11u1
- 1:140.4.0esr-1~deb12u1
- 1:140.4.0esr-1~deb13u1
- 1:140.5.0esr-1
- 1:140.5.0esr-1~deb11u1
- 1:140.5.0esr-1~deb12u1
- 1:140.5.0esr-1~deb13u1
- 1:140.6.0esr-1
- 1:140.6.0esr-1~deb11u1
- 1:140.6.0esr-1~deb12u1
- 1:140.6.0esr-1~deb13u1
- 1:140.7.0esr-1
- 1:140.7.0esr-1~deb11u1
- 1:140.7.0esr-1~deb12u1
- 1:140.7.0esr-1~deb13u1
- 1:140.7.1esr-1
- 1:140.7.1esr-1~deb11u1
- 1:140.7.1esr-1~deb12u1
- 1:140.7.1esr-1~deb13u1
- 1:140.8.0esr-1
- 1:140.8.0esr-1~deb11u1
- 1:140.8.0esr-1~deb12u1
- 1:140.8.0esr-1~deb13u1
- 1:140.9.0esr-1
- 1:140.9.0esr-1~deb11u1
- 1:140.9.0esr-1~deb12u1
- 1:140.9.0esr-1~deb13u1
- 1:140.9.1esr-1
- 1:140.9.1esr-1~deb11u1
- 1:140.9.1esr-1~deb12u1
- 1:140.9.1esr-1~deb13u1
- 1:143.0.1-1
- 1:144.0.1-1
- 1:148.0.1-1
- 1:149.0.2-1
- 1:152.0-1
- 1:153.0.1esr-1
- 1:153.0.3esr-1
- 1:153.1.0esr-1
- 1:153.2.0esr-1
- 1:153.3.0esr-1
- 1:153.3.0esr-2
- 1:153.4.0esr-1
- 1:153.5.0esr-1
- 1:153.5.1esr-1
- 1:153.5.1esr-1~deb12u1
- 1:153.5.1esr-1~deb13u1
- 1:153.5.1esr-1~deb13u2
- 1:153.6.0esr-1
- 1:155.0.1-1
- 1:155.0.1-2
- 1:157.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
thunderbird Debian:14
- Versions
- 1:128.13.0esr-1
- 1:128.14.0esr-1
- 1:128.14.0esr-1~deb11u1
- 1:128.14.0esr-1~deb12u1
- 1:128.14.0esr-1~deb13u1
- 1:129.0~b6-1
- 1:130.0~b3-1
- 1:132.0~b6-1
- 1:135.0-1
- 1:136.0-1
- 1:137.0-1
- 1:138.0-1
- 1:140.0.1esr-1
- 1:140.1.0esr-1
- 1:140.1.1esr-1
- 1:140.10.0esr-1
- 1:140.10.0esr-1~deb11u1
- 1:140.10.0esr-1~deb12u1
- 1:140.10.0esr-1~deb13u1
- 1:140.10.1esr-1
- 1:140.10.1esr-1~deb11u1
- 1:140.10.1esr-1~deb12u1
- 1:140.10.1esr-1~deb13u1
- 1:140.10.2esr-1
- 1:140.10.2esr-1~deb11u1
- 1:140.10.2esr-1~deb12u1
- 1:140.10.2esr-1~deb13u1
- 1:140.11.0esr-1
- 1:140.11.0esr-1~deb11u1
- 1:140.11.0esr-1~deb12u1
- 1:140.11.0esr-1~deb13u1
- 1:140.12.0esr-1
- 1:140.12.0esr-1~deb11u1
- 1:140.12.0esr-1~deb12u1
- 1:140.12.0esr-1~deb13u1
- 1:140.13.0esr-1
- 1:140.13.0esr-2
- 1:140.13.0esr-2~deb11u1
- 1:140.13.0esr-2~deb12u1
- 1:140.13.0esr-2~deb13u1
- 1:140.14.0esr-1
- 1:140.14.0esr-1~deb11u1
- 1:140.14.0esr-1~deb12u1
- 1:140.14.0esr-1~deb13u1
- 1:140.15.0esr-1~deb12u1
- 1:140.15.0esr-1~deb13u1
- 1:140.16.0esr-1~deb12u1
- 1:140.16.0esr-1~deb13u1
- 1:140.17.0esr-1~deb12u1
- 1:140.17.0esr-1~deb13u1
- 1:140.2.0esr-1
- 1:140.3.0esr-1
- 1:140.3.0esr-1~deb11u1
- 1:140.3.0esr-1~deb12u1
- 1:140.3.0esr-1~deb13u1
- 1:140.3.1esr-1
- 1:140.4.0esr-1
- 1:140.4.0esr-1~deb11u1
- 1:140.4.0esr-1~deb12u1
- 1:140.4.0esr-1~deb13u1
- 1:140.5.0esr-1
- 1:140.5.0esr-1~deb11u1
- 1:140.5.0esr-1~deb12u1
- 1:140.5.0esr-1~deb13u1
- 1:140.6.0esr-1
- 1:140.6.0esr-1~deb11u1
- 1:140.6.0esr-1~deb12u1
- 1:140.6.0esr-1~deb13u1
- 1:140.7.0esr-1
- 1:140.7.0esr-1~deb11u1
- 1:140.7.0esr-1~deb12u1
- 1:140.7.0esr-1~deb13u1
- 1:140.7.1esr-1
- 1:140.7.1esr-1~deb11u1
- 1:140.7.1esr-1~deb12u1
- 1:140.7.1esr-1~deb13u1
- 1:140.8.0esr-1
- 1:140.8.0esr-1~deb11u1
- 1:140.8.0esr-1~deb12u1
- 1:140.8.0esr-1~deb13u1
- 1:140.9.0esr-1
- 1:140.9.0esr-1~deb11u1
- 1:140.9.0esr-1~deb12u1
- 1:140.9.0esr-1~deb13u1
- 1:140.9.1esr-1
- 1:140.9.1esr-1~deb11u1
- 1:140.9.1esr-1~deb12u1
- 1:140.9.1esr-1~deb13u1
- 1:143.0.1-1
- 1:144.0.1-1
- 1:148.0.1-1
- 1:149.0.2-1
- 1:152.0-1
- 1:153.0.1esr-1
- 1:153.0.3esr-1
- 1:153.1.0esr-1
- 1:153.2.0esr-1
- 1:153.3.0esr-1
- 1:153.3.0esr-2
- 1:153.4.0esr-1
- 1:153.5.0esr-1
- 1:153.5.1esr-1
- 1:153.5.1esr-1~deb12u1
- 1:153.5.1esr-1~deb13u1
- 1:153.5.1esr-1~deb13u2
- 1:153.6.0esr-1
- 1:155.0.1-1
- 1:155.0.1-2
- 1:157.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs52 Ubuntu:18.04:LTS
- Versions
- 52.3.1-0ubuntu3
- 52.3.1-7fakesync1
- 52.8.1-0ubuntu0.18.04.1
- 52.9.1-0ubuntu0.18.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs38 Ubuntu:18.04:LTS
- Versions
- 38.8.0~repack1-0ubuntu1
- 38.8.0~repack1-0ubuntu3
- 38.8.0~repack1-0ubuntu4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs68 Ubuntu:20.04:LTS
- Versions
- 68.5.0-1~fakesync
- 68.5.0-2~fakesync
- 68.6.0-1
- 68.6.0-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs52 Ubuntu:20.04:LTS
- Versions
- 52.9.1-1build1
- 52.9.1-1ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs102 Ubuntu:22.04:LTS
- Versions
- 102.11.0-0ubuntu0.22.04.1
- 102.12.0-0ubuntu0.22.04.1
- 102.13.0-0ubuntu0.22.04.1
- 102.15.1-0ubuntu0.22.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs78 Ubuntu:22.04:LTS
- Versions
- 78.13.0-1
- 78.15.0-2
- 78.15.0-4ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs91 Ubuntu:22.04:LTS
- Versions
- 91.5.1-0ubuntu1
- 91.6.0-1
- 91.6.0-2
- 91.7.0-2
- 91.10.0-0ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
thunderbird Ubuntu:22.04:LTS
- Versions
- 1:91.1.2+build1-0ubuntu1
- 1:91.3.0+build2-0ubuntu1
- 1:91.3.1+build1-0ubuntu1
- 1:91.3.2+build1-0ubuntu1
- 1:91.4.0+build1.1-0ubuntu1
- 1:91.4.0+build2-0ubuntu1
- 1:91.5.0+build1-0ubuntu1
- 1:91.5.1+build1-0ubuntu1
- 1:91.6.1+build1-0ubuntu1
- 1:91.7.0+build1-0ubuntu1
- 1:91.7.0+build2-0ubuntu1
- 1:91.8.0+build2-0ubuntu1
- 1:91.9.1+build1-0ubuntu0.22.04.1
- 1:91.11.0+build2-0ubuntu0.22.04.1
- 1:102.2.2+build1-0ubuntu0.22.04.1
- 1:102.4.2+build2-0ubuntu0.22.04.1
- 1:102.7.1+build2-0ubuntu0.22.04.1
- 1:102.8.0+build2-0ubuntu0.22.04.1
- 1:102.9.0+build1-0ubuntu0.22.04.1
- 1:102.10.0+build2-0ubuntu0.22.04.1
- 1:102.11.0+build1-0ubuntu0.22.04.1
- 1:102.13.0+build1-0ubuntu0.22.04.1
- 1:102.15.0+build1-0ubuntu0.22.04.1
- 1:102.15.1+build1-0ubuntu0.22.04.1
- 1:115.3.1+build1-0ubuntu0.22.04.2
- 1:115.4.1+build1-0ubuntu0.22.04.1
- 1:115.5.0+build1-0ubuntu0.22.04.1
- 1:115.6.0+build2-0ubuntu0.22.04.1
- 1:115.8.1+build1-0ubuntu0.22.04.1
- 1:115.9.0+build1-0ubuntu0.22.04.1
- 1:115.10.1+build1-0ubuntu0.22.04.1
- 1:115.11.0+build2-0ubuntu0.22.04.1
- 1:115.12.0+build3-0ubuntu0.22.04.1
- 1:115.13.0+build5-0ubuntu0.22.04.1
- 1:115.15.0+build1-0ubuntu0.22.04.1
- 1:115.16.0+build2-0ubuntu0.22.04.1
- 1:115.18.0+build1-0ubuntu0.22.04.1
- 1:128.12.0+build1-0ubuntu0.22.04.1
- 1:140.7.1+build1-0ubuntu0.22.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs102 Ubuntu:24.04:LTS
- Versions
- 102.15.1-1
- 102.15.1-3ubuntu2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs115 Ubuntu:24.04:LTS
- Versions
- 115.3.0-0ubuntu1
- 115.4.0-2
- 115.5.0-1
- 115.6.0-1
- 115.7.0-4
- 115.8.0-1
- 115.9.0-1
- 115.9.0-1build1
- 115.10.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published