PT-2025-10625 · Mozilla+6 · Thunderbird+6

Daniel Huigens · Published 2025-02-13 · Updated 2025-10-08 · CVE-2025-26695

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 136 Thunderbird versions prior to 128.8

Description The issue arises when requesting an OpenPGP key from a WKD server, where an incorrect padding size was used. This could allow a network observer to learn the length of the requested email address.

Recommendations For versions prior to 136, update to version 136 or later. For versions prior to 128.8, update to version 128.8 or later.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2025-7695

BDU:2025-02578

CVE-2025-26695

DLA-4081-1

DSA-5876-1

OESA-2025-1835

OPENSUSE-SU-2025_0849-1

SUSE-SU-2025:0849-1

USN-7663-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Red Os

Suse

Thunderbird

Ubuntu

References · 184

• https://ubuntu.com/security/CVE-2025-1935 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-5268 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-1835 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-4919 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-9393 · Security Note
• https://ubuntu.com/security/CVE-2025-1938 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-3909 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-11691 · Security Note
• https://ubuntu.com/security/CVE-2025-1014 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-26695 · Security Note
• https://ubuntu.com/security/CVE-2025-5267 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-17 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-9394 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-0238 · Security Note
• https://bdu.fstec.ru/vul/2025-02578 · Security Note