Vulnerability Monitor

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CVE-2025-26695

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 affects Thunderbird < 136 and Thunderbird < 128.8.

Published

2025-03-10T19:15:40.567

Last Modified

2025-04-03T13:30:39.037

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	thunderbird	< 128.8.0	Yes
Application	mozilla	thunderbird	< 136.0	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1883039 Issue Tracking ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-17/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-18/ Vendor Advisory ([email protected])