~ / search / GHSA-cj93-chg6-vgv8

GHSA-cj93-chg6-vgv8

pypdf: Possible large memory usage for large offsets for layout mode text

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-48155

Packages

EcosystemPackageAffectedFixed in
PyPI pypdf < 6.12.0 6.12.0

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 text in layout mode with large character offsets. ### Patches This has been fixed in [pypdf==6.12.0](https://github.com/py-pdf/pypdf/releases/tag/6.12.0). ### Workarounds If developers are unable to immediately upgrade, they should consider applying the changes from PR [#3790](https://github.com/py-pdf/pypdf/pull/3790).

References

External links from the advisory. They lead to third-party sites.