pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer /Size value in incremental mode. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.
Weakness
The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pypdf | Pypdf_project | * | 6.10.2 (excluding) |
| Pypdf2 | Ubuntu | esm-apps/xenial | * |