SB2026041096 - Infinite loop in PyPDF
Published: April 10, 2026
Security Bulletin ID
SB2026041096
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Infinite loop (CVE-ID: CVE-2026-24688)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an infinite loop in outlines/bookmarks processing when parsing a crafted PDF and accessing outlines/bookmarks. A remote attacker can supply a specially crafted PDF to cause a denial of service.
User interaction is required to access the outlines/bookmarks in the crafted PDF.
Remediation
Install update from vendor's website.