Vulnerability · NVD
CVE-2026-118174
CVE-2026-118174, Severity pending severity (CVSS —): 1 tracked app concerned, all fixed or indeterminable on their current version.
- Severity (CVSS)
- -
- Exploitation
- -
- Tracked apps
- 1
- Still exposed
- 0
When a message containing an OpenPGP key attachment was displayed, Thunderbird automatically loaded the attachment's content to offer importing the key. A sender could mark the attachment as an external attachment pointing to an arbitrary URL, which Thunderbird then loaded without any user interaction, bypassing remote content blocking. On Windows, a URL pointing to an attacker-controlled network share could leak the user's NTLM credentials.
The NTLM credential leak only affects Thunderbird on Windows. On other operating systems, the issue allowed a remote request that bypassed remote content blocking. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.
Tracked apps referencing this CVE
For each app: the affected range, the fixing version, and where the tracked app stands today.
Vulnerable CPE configurations (1)
| Vendor | Product | Platform | Versions | CPE 2.3 URI |
|---|---|---|---|---|
| mozilla |
thunderbird All platforms (wildcard)
|
All platforms (wildcard) | <159 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
Manage your fleet with Appaloosa
Appaloosa pushes OS updates, apps and policies to your Windows, macOS, iOS and Android devices from one console.