pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting the text of a page which contains a form XObject with self-references. This vulnerability is fixed in 6.12.2.
Metrics
Affected Vendors & Products
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References
History
Mon, 22 Jun 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting the text of a page which contains a form XObject with self-references. This vulnerability is fixed in 6.12.2. | |
| Title | pypdf: Possible large memory usage for form XObjects during text extraction | |
| Weaknesses | CWE-400 | |
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cvssV4_0
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-22T20:27:16.174Z
Reserved: 2026-05-30T04:17:43.094Z
Link: CVE-2026-49461
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
Updated: 2026-06-22T22:30:07Z