CVE-2026-57204
Medium · 6.5CVSS
6.5
EPSS
—
Published
Jun 30, 2026
CISA due date
—
The record
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-113795 pypdf is a free and open-source pure-python PDF library. CWE-400
- CVE-2026-83400 Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise… CWE-400
- CVE-2026-112400 Pillow is a Python imaging library. CWE-400
- CVE-2026-111766 markdown-it is a Markdown parser. CWE-400
- CVE-2026-111759 markdown-it is a Markdown parser. CWE-400
- CVE-2025-52290 A NULL pointer dereference in the avpriv_h264_has_num_reorder_frames function of Ffmpeg… CWE-400
- CVE-2026-111066 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. CWE-400
- CVE-2026-59951 The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context… CWE-400