Vulnerability · NVD
CVE-2026-118177
CVE-2026-118177, 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 looking for calendars in a directory on a server, during account setup or when adding a new network calendar, Thunderbird accepted calendar locations pointing to other servers, local files or network shares. A malicious server, or a network attacker when the lookup used plain HTTP, could make Thunderbird subscribe to such a location. On Windows this could leak the user's NTLM credentials to an attacker-controlled host on every calendar refresh, and changes to the calendar could be written to the attacker's share or overwrite a local file. 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:*:*:*:*:*:*:*:* |
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