Resource exhaustion in PyPDF - CVE-2026-22690

 

Resource exhaustion in PyPDF - CVE-2026-22690

Published: January 12, 2026


Vulnerability identifier: #VU121162
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-22690
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when parsing PDF files. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

PyPDF
Fusion Content-Aware Storage
IBM Fusion HCI
IBM Watson Discovery for IBM Cloud Pak for Data

How to mitigate CVE-2026-22690

Install updates from vendor's website.

PyPDF - update to 6.6.0
Fusion Content-Aware Storage - update to 1.1.1
IBM Fusion HCI - update to 2.13.0
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.3.2

External References

Related Security Bulletins