CVE-2026-103000
CVE-2026-103000
8.7
HighPublished:
Last updated:
Source:security-advisories@github.com
Analyzed
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- None
- Confidentiality (Vulnerable)
- None
- Integrity (Vulnerable)
- None
- Availability (Vulnerable)
- High
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- None
- Availability (Subsequent)
- None
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond a reasonable page-label length when an application retrieves document page labels, consuming excessive memory and potentially making the application unavailable. This issue is fixed in version 6.19.0.
References
security-advisories@github.com
https://github.com/py-pdf/pypdf/commit/0d8b5a8832cde1ba308b5c27567b879b7b7eed4asecurity-advisories@github.com
https://github.com/py-pdf/pypdf/pull/4096security-advisories@github.com
https://github.com/py-pdf/pypdf/releases/tag/6.19.0security-advisories@github.com
https://github.com/py-pdf/pypdf/security/advisories/GHSA-w23x-9jrw-r45c