요약
- CVE-2026-84311은(는) pypdf, pypdf (pypdf project)에 영향을 주는 낮음 (CVSS 3.3) 취약점입니다.
- 향후 30일 내 악용 확률(EPSS): 0.14%, 전체 취약점의 2.9%보다 높음.
- 조치: 6.16.1 이상으로 업데이트하세요.
| Package | Affected versions | Patched versions |
|---|
| pypdf PyPI | < 6.16.1
| 6.16.1
|
| pypdf | < 6.16.1
| 6.16.1
|
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires extracting the text of a page with lots of XForm objects, where some of them might be re-used.
Patches
This has been fixed in pypdf==6.16.1.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3966.
NVD description
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.
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