GHSA-j543-4vmf-qm7v
pypdf: Possible large memory usage for form XObjects during text extraction
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
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.
### Patches
This has been fixed in [pypdf==6.12.2](https://github.com/py-pdf/pypdf/releases/tag/6.12.2).
### Workarounds
If you cannot upgrade yet, consider applying the changes from PR [#3805](https://github.com/py-pdf/pypdf/pull/3805).
References
External links from the advisory. They lead to third-party sites.