CVE-2026-84310
Published:September 01, 2026
Updated:September 02, 2026
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/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
Affected Packages
pypdf (CONDA):
Affected version(s) >=3.2.0 <6.16.1Fix Suggestion:
Update to version 6.16.1https://github.com/py-pdf/pypdf.git (GITHUB):
Affected version(s) >=3.1.0 <6.16.1Fix Suggestion:
Update to version 6.16.1pypdf (PYTHON):
Affected version(s) >=1.0 <6.16.1Fix Suggestion:
Update to version 6.16.1Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW