CVE-2025-26695

medium

Description

When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.

References

https://www.mozilla.org/security/advisories/mfsa2025-18/

https://www.mozilla.org/security/advisories/mfsa2025-17/

https://bugzilla.mozilla.org/show_bug.cgi?id=1883039

Details

Source: Mitre, NVD

Published: 2025-03-10

Updated: 2026-04-13

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L