pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting text in layout mode with large character offsets. This vulnerability is fixed in 6.12.0.
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History
Thu, 28 May 2026 17:00:00 +0000
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Py-pdf
Py-pdf pypdf |
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Py-pdf
Py-pdf pypdf |
Thu, 28 May 2026 16:30:00 +0000
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ssvc
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Thu, 28 May 2026 15:30:00 +0000
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| Description | pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting text in layout mode with large character offsets. This vulnerability is fixed in 6.12.0. | |
| Title | pypdf: Possible large memory usage for large offsets for layout mode text | |
| Weaknesses | CWE-400 | |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-28T14:51:49.411Z
Updated: 2026-05-28T15:57:54.367Z
Reserved: 2026-05-20T23:12:43.031Z
Link: CVE-2026-48155
Updated: 2026-05-28T15:57:50.832Z
Status : Undergoing Analysis
Published: 2026-05-28T16:16:28.890
Modified: 2026-05-28T18:55:06.837
Link: CVE-2026-48155
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