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CVE-2025-26695

Downloading of OpenPGP keys from WKD used incorrect padding

Published: Mar 10, 2025Updated: Apr 13, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
5.3MEDIUM
NVD MITRE
EPSS Score
0.1%
Top 95.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

Mozilla Corp.
oss-project·USaka mozilla
ThunderbirdOn-premDesktop App
Communications / email-server-client
Thunderbird ESR
Consumer Software
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Common EditionOn-premOS
Operating Systems / linux-distro
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
АО «ИВК»
commercial·RUaka ivk
АЛЬТ СП 10On-premOS
Operating Systems / linux-distro
and 2 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2025-26695?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1883039
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-17/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-18/
mozilla.org
and 8 more references View all →

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