| Package | Affected versions | Patched versions |
|---|---|---|
| pypdf | < 6.20.0 | 6.20.0 |
An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires accessing any stream with a large amount of filters or multiple filters which pass around large amounts of data.
This has been fixed in pypdf==6.20.0.
If you cannot upgrade yet, consider applying the changes from PR #4173.
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