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VULNERABILITIES

CVE-2026-102998 Details

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/py-pdf/pypdf/commit/959467a9b95be83e2dc5ae873ece5f371263ede7 [email protected]
https://github.com/py-pdf/pypdf/pull/4087 [email protected]
https://github.com/py-pdf/pypdf/releases/tag/6.19.0 [email protected]
https://github.com/py-pdf/pypdf/security/advisories/GHSA-php9-fj8v-98fj [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-400Uncontrolled Resource Consumption[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-102998
NVD Published Date:
Sep 30, 2026
NVD Last Modified:
Oct 1, 2026
Source:
[email protected]
CVE-2026-102998 Details - Not Deferred