GHSA-vr63-x8vc-m265

pypdf possibly loops infinitely when reading DCT inline images without EOF marker

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-62707

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	pypdf	< 6.1.3	6.1.3

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 an infinite loop. This requires parsing the content stream of a page which has an inline image using the DCTDecode filter. ### Patches This has been fixed in [pypdf==6.1.3](https://github.com/py-pdf/pypdf/releases/tag/6.1.3). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3501](https://github.com/py-pdf/pypdf/pull/3501).

References

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

https://github.com/py-pdf/pypdf/security/advisories/GHSA-vr63-x8vc-m265 web
https://nvd.nist.gov/vuln/detail/CVE-2025-62707 advisory
https://github.com/py-pdf/pypdf/pull/3501 web
https://github.com/py-pdf/pypdf/commit/f2864d6dd9bac7cecd3f4f54308b25ebbfa178f8 web
https://github.com/py-pdf/pypdf package
https://github.com/py-pdf/pypdf/releases/tag/6.1.3 web