CVE-2025-26696 Details
Description
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.
A vulnerability exists in certain versions of Mozilla Thunderbird where crafted MIME email messages were incorrectly displayed as encrypted. This issue arises when a message claims to contain an encrypted OpenPGP message but actually includes an OpenPGP signed message instead. The vulnerability affects Thunderbird versions prior to 136 and prior to 128.8.
Users can upgrade to Thunderbird 136 or Thunderbird 128.8 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 11, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1864205 | [email protected] | Issue Tracking |
| https://www.mozilla.org/security/advisories/mfsa2025-17/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-18/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-290 | Authentication Bypass by Spoofing | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla thunderbird | < 128.8.0 >= 129.0, < 136.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Apr 3, 2025 | Initial Analysis | [email protected] |
| Mar 11, 2025 | CVE Modified | CISA-ADP |
| Mar 10, 2025 | New CVE Received | [email protected] |