SB2023102902 - Improper input validation in PyPDF
Published: October 29, 2023 Updated: April 10, 2026
Security Bulletin ID
SB2023102902
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2023-46250)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in PdfWriter(clone_from) when processing a crafted PDF. A remote attacker can supply a specially crafted PDF to cause a denial of service.
The issue can be triggered when a malicious PDF is manipulated, such as during merging with another PDF or when adding annotations.
Remediation
Install update from vendor's website.