pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0.
Metrics
Affected Vendors & Products
References
History
Mon, 05 Oct 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Pypdf Project
Pypdf Project pypdf |
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| CPEs | cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Pypdf Project
Pypdf Project pypdf |
Thu, 01 Oct 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Py-pdf
Py-pdf pypdf |
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| Vendors & Products |
Py-pdf
Py-pdf pypdf |
Thu, 01 Oct 2026 00:15:00 +0000
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| Weaknesses | CWE-606 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Wed, 30 Sep 2026 21:30:00 +0000
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| Metrics |
ssvc
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Wed, 30 Sep 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0. | |
| Title | pypdf: Possible long runtimes/large memory usage when parsing indirect objects | |
| 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: 2026-09-30T19:57:37.810Z
Updated: 2026-09-30T20:50:16.366Z
Reserved: 2026-09-29T20:46:08.334Z
Link: CVE-2026-102994
Updated: 2026-09-30T20:50:12.372Z
Status : Analyzed
Published: 2026-09-30T20:17:28.080
Modified: 2026-10-05T15:24:04.943
Link: CVE-2026-102994