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[USN-8950-1] poppler vulnerability

Posted on 21 October 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8950-1
October 21, 2026

poppler vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.10
- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

poppler could be made to crash if it opened a specially crafted file.

Software Description:
- poppler: PDF rendering library

Details:

It was discovered that poppler incorrectly handled the password length
limit when decrypting certain encrypted PDF files. An attacker could
possibly use this issue to cause a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.10
libpoppler162 26.07.0-2ubuntu1.1

Ubuntu 26.04 LTS
libpoppler156 26.01.0-2ubuntu0.3

Ubuntu 24.04 LTS
libpoppler134 24.02.0-1ubuntu9.11

Ubuntu 22.04 LTS
libpoppler118 22.02.0-2ubuntu0.15

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8950-1
CVE-2026-107705

Package Information:
https://launchpad.net/ubuntu/+source/poppler/26.07.0-2ubuntu1.1
https://launchpad.net/ubuntu/+source/poppler/26.01.0-2ubuntu0.3
https://launchpad.net/ubuntu/+source/poppler/24.02.0-1ubuntu9.11
https://launchpad.net/ubuntu/+source/poppler/22.02.0-2ubuntu0.15

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