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openSUSE Leap 16.0 python-PyPDF2 Important Denial Of Service 2026-20333-1

opensuse
Calendar Grey March 7, 2026
Dist Opensuse Esm H88
This update for python-PyPDF2 addresses several issues including denial of service, enhancing stability and security.
An update that solves 6 vulnerabilities and has 6 bug fixes can now be installed.

Description

This update for python-PyPDF2 fixes the following issues:

Changes in python-PyPDF2:

- CVE-2026-27628: Fixed infinite loop when loading circular /Prev entries in cross-reference streams (bsc#1258940)

- CVE-2026-27888: Fixed issue where manipulated FlateDecode XFA streams can exhaust RAM (bsc#1258934)

- CVE-2025-55197: Fixed denial of service via craft PDF (bsc#1248089)

- CVE-2026-27024: Fixed infinite loop when processing TreeObject (bsc#1258691)

- CVE-2026-27025: Fixed long runtimes/large memory usage for large /ToUnicode streams (bsc#1258692)

- CVE-2026-27026: Fixed long runtimes for malformed FlateDecode streams (bsc#1258693)

- Convert to pip-based build

Patch instructions:

To install this openSUSE security update use the suse recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

zypper in -t patch openSUSE-Leap-16.0-packagehub-153=1

Topics%20covered

Topics Covered

security advisory denial of service bug fix important OpenSUSE python-pypdf2

Patch

Package List

- openSUSE Leap 16.0:

python313-PyPDF2-2.11.1-bp160.2.1

References

* bsc#1248089

* bsc#1258691

* bsc#1258692

* bsc#1258693

* bsc#1258934

* bsc#1258940

References:

* https://www.suse.com/security/cve/CVE-2025-55197.html

* https://www.suse.com/security/cve/CVE-2026-27024.html

* https://www.suse.com/security/cve/CVE-2026-27025.html

* https://www.suse.com/security/cve/CVE-2026-27026.html

* https://www.suse.com/security/cve/CVE-2026-27628.html

* https://www.suse.com/security/cve/CVE-2026-27888.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:20333-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory denial of service bug fix important OpenSUSE python-pypdf2

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