MEDIUM

GHSA-j543-4vmf-qm7v

pypdf: Possible large memory usage for form XObjects during text extraction

Details

### 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).

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / pypdf

Introduced in: 0 Fixed in: 6.12.2

Fix pip install --upgrade 'pypdf>=6.12.2'

References

https://github.com/py-pdf/pypdf/security/advisories/GHSA-j543-4vmf-qm7v [WEB]
https://github.com/py-pdf/pypdf/pull/3805 [WEB]
https://github.com/py-pdf/pypdf [PACKAGE]
https://github.com/py-pdf/pypdf/releases/tag/6.12.2 [WEB]