Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Sun, 01 Feb 2026 00:30:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| Description | CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1. | When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1. |
Sat, 31 Jan 2026 03:15:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* |
Thu, 29 Jan 2026 19:15:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mozilla
Mozilla thunderbird |
|
| Vendors & Products |
Mozilla
Mozilla thunderbird |
Thu, 29 Jan 2026 02:15:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-116 CWE-200 CWE-352 |
|
| Metrics |
cvssV3_1
|
Wed, 28 Jan 2026 16:45:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| Description | CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1. | |
| Title | CSS-based exfiltration of the content from partially encrypted emails when allowing remote content | |
| References |
|
Projects
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Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2026-01-31T15:11:09.535Z
Reserved: 2026-01-09T16:32:39.712Z
Link: CVE-2026-0818
Updated: 2026-01-28T16:49:29.763Z
Status : Modified
Published: 2026-01-28T08:16:03.113
Modified: 2026-01-31T16:16:29.140
Link: CVE-2026-0818
No data.
OpenCVE Enrichment
Updated: 2026-01-29T18:18:26Z