CVE-2022-26306 Execution of Untrusted Macros Due to Improper Certificate Validation

What is CVE-2022-26306?

CVE-2022-26306 is a high-severity vulnerability in Debian Debian Linux, published on 25 Jul 2022. An attacker can exploit it over the internet without logging in, 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 the required initialization vector for encryption was always the same which weakens the security of the encryption making them vulnerable if an attacker has access to the user's configuration data. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.

Weakness: CWE-330, CWE-326

Which versions are affected by CVE-2022-26306?

It affects 2 products.

Products include Debian Debian Linux, Libreoffice Libreoffice.

How do I fix CVE-2022-26306?

Upgrade to a fixed version.

Is CVE-2022-26306 being exploited?

There is no known exploitation of CVE-2022-26306 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-2022-26306, GHSA-v7pr-9gfg-7hpc, UBUNTU-CVE-2022-26306.