CVE-2022-26307 Weak Master Keys

What is CVE-2022-26307?

CVE-2022-26307 is a high-severity vulnerability in Debian Debian Linux, published on 25 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

LibreOffice supports the storage of passwords for web connections in the user’s configuration database. The stored passwords are encrypted with a single master key provided by the user. A flaw in LibreOffice existed where master key was poorly encoded resulting in weakening its entropy from 128 to 43 bits making the stored passwords vulerable to a brute force attack if an attacker has access to the users stored config. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.3.

Weakness: CWE-326

Which versions are affected by CVE-2022-26307?

It affects 2 products.

Products include Debian Debian Linux, Libreoffice Libreoffice.

How do I fix CVE-2022-26307?

Upgrade to a fixed version.

Is CVE-2022-26307 being exploited?

There is no known exploitation of CVE-2022-26307 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-26307, GHSA-7p78-g262-f9rp, UBUNTU-CVE-2022-26307.