SB2025112877 - Memory exhaustion in PyPDF
Published: November 28, 2025
Security Bulletin ID
SB2025112877
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) Resource exhaustion (CVE-ID: N/A)
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 within the LZWDecode filter. A remote attacker can pass a specially crafted PDF file to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.
Note, the vulnerability exists due to incomplete fix for #VU118843 (CVE-2025-62708).
Remediation
Install update from vendor's website.