SB20260414100 - Excessive Iteration in PyPDF
Published: April 14, 2026
Security Bulletin ID
SB20260414100
Severity
Low
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) Excessive Iteration (CVE-ID: N/A)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to excessive iteration in cross-reference and object stream processing when parsing a crafted PDF with wrong large /Size or /N values. A remote attacker can supply a specially crafted PDF to cause a denial of service.
Remediation
Install update from vendor's website.