| Package | Affected versions | Patched versions |
|---|---|---|
| pypdf | < 6.12.0 | 6.12.0 |
| pypdf | < 6.12.0 | 6.12.0 |
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W [0 0 0] values and large /Size values.
This has been fixed in pypdf==6.12.0.
If developers are unable to upgrade their apps immediately, they should consider applying the changes from PR #3791.
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