pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0.
Metrics
Affected Vendors & Products
References
History
Wed, 28 Oct 2026 17:30:00 +0000
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ssvc
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Thu, 22 Oct 2026 12:30:00 +0000
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| Weaknesses | CWE-770 | |
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threat_severity
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cvssV3_1
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Thu, 22 Oct 2026 00:30:00 +0000
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Py-pdf
Py-pdf pypdf |
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| Vendors & Products |
Py-pdf
Py-pdf pypdf |
Wed, 21 Oct 2026 17:15:00 +0000
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| Description | pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0. | |
| Title | pypdf: Possible long runtimes/large memory usage when retrieving form fields | |
| Weaknesses | CWE-400 CWE-407 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-21T15:33:45.801Z
Updated: 2026-10-28T16:42:29.030Z
Reserved: 2026-10-20T17:39:41.372Z
Link: CVE-2026-113789
Updated: 2026-10-28T16:42:25.960Z
Status : Undergoing Analysis
Published: 2026-10-21T16:17:26.603
Modified: 2026-10-28T17:17:44.787
Link: CVE-2026-113789