CVE-2025-26695

EUVD-2025-7705
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
mozillathunderbird
𝑥
< 128.8.0
mozillathunderbird
129.0 ≤
𝑥
< 136.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
thunderbird
bookworm
1:140.6.0esr-1~deb12u1
fixed
bookworm (security)
1:140.9.1esr-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
1:140.9.1esr-1~deb11u1
fixed
forky
1:140.9.0esr-1
fixed
sid
1:140.9.1esr-1
fixed
trixie
1:140.8.0esr-1~deb13u1
fixed
trixie (security)
1:140.9.1esr-1~deb13u1
fixed