MEDIUM5.0

PYSEC-2026-1765

Peppol-py is vulnerable to XXE attacks due to Saxon configuration

Quick fix

PYSEC-2026-1765 — peppol-py: upgrade to the fixed version with the command below.

pip install --upgrade 'peppol-py>=1.1.1'

Details

Peppol-py before 1.1.1 allows XXE attacks because of the Saxon configuration. When validating XML-based invoices, the XML parser could read files from the filesystem and expose their content to a remote host.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/peppol-py

Introduced in: 0Fixed in: 1.1.1

Fixpip install --upgrade 'peppol-py>=1.1.1'

References

https://nvd.nist.gov/vuln/detail/CVE-2025-66371[ADVISORY]
https://github.com/iterasdev/peppol-py/pull/16[WEB]
https://github.com/iterasdev/peppol-py/commit/349a4bff8adb6205ea411bac8d7a06da0477abd7[WEB]
https://github.com/iterasdev/peppol-py[PACKAGE]
https://github.com/iterasdev/peppol-py/releases/tag/1.1.1[WEB]
https://invoice.secvuln.info[WEB]
https://pypi.org/project/peppol-py[PACKAGE]
https://github.com/advisories/GHSA-24hm-wm2h-h8w7[ADVISORY]