The vulnerability of the Python library for working with PDF files, PyPDF, arises from improper processing of highly compressed input data. This vulnerability allows attackers to cause service failures.
🗓️ 27 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 11 Views
| Reporter | Title | Published | Views | Family All 29 |
|---|---|---|---|---|
 | Security Bulletin: Vulnerability in pypdf bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage. | 10 Aug 202615:28 | – | ibm |
| Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in pypdf-6.3.0-py3-none-any.whl | 10 Apr 202617:45 | – | ibm |
 | CVE-2025-66019 vulnerabilities | 7 Jan 202601:30 | – | cgr |
 | CVE-2025-66019 | 4 Mar 202618:48 | – | circl |
 | pypdf 安全漏洞 | 26 Nov 202500:00 | – | cnnvd |
 | CVE-2025-66019 | 25 Nov 202523:38 | – | cve |
 | CVE-2025-66019 pypdf manipulated LZWDecode streams can exhaust RAM | 25 Nov 202523:38 | – | cvelist |
 | CVE-2025-66019 | 25 Nov 202523:38 | – | debiancve |
 | EUVD-2025-199665 | 25 Nov 202523:38 | – | euvd |
 | pypdf's LZWDecode streams be manipulated to exhaust RAM | 24 Nov 202522:42 | – | github |
10
Node
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
27 May 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 37.5
CVSS 27.8
EPSS0.00353