CVE-2026-41314
Published:April 22, 2026
Updated:April 23, 2026
pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using "/FlateDecode" with large size values. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.
Affected Packages
pypdf (CONDA):
Affected version(s) >=3.2.0 <6.10.2Fix Suggestion:
Update to version 6.10.2https://github.com/py-pdf/pypdf.git (GITHUB):
Affected version(s) >=v1.17 <6.10.2Fix Suggestion:
Update to version 6.10.2pypdf (PYTHON):
Affected version(s) >=1.0 <6.10.2Fix Suggestion:
Update to version 6.10.2Related Resources (4)
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
Weakness Type (CWE)
Memory Allocation with Excessive Size Value
