CVE-2026-27628

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/py-pdf/pypdf/commit/f0a462d36971cf077d74492a348d0d06fd60ea4d
https://github.com/py-pdf/pypdf/issues/3654	Issue Tracking Patch
https://github.com/py-pdf/pypdf/security/advisories/GHSA-2rw7-x74f-jg35	Patch Vendor Advisory
https://github.com/py-pdf/pypdf/issues/3654	Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-25 03:16

Updated : 2026-02-27 20:21

NVD link : CVE-2026-27628

Mitre link : CVE-2026-27628

CVE.ORG link : CVE-2026-27628

JSON object : View

Products Affected

pypdf_project

pypdf

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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