CVE-2022-26661: PYSEC-2026-740 - Improper Restriction of XML External Entity Reference in trytond and proteus

CVE-2022-26661 · Severity: low · CVSS 3.1 · Published 2026-07-02

Improper Restriction of XML External Entity Reference in trytond and proteus

Technologies: tryton (PyPI), trytond (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2022-26661 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2022-26661 being exploited in the wild.
How severe is CVE-2022-26661?
Low severity, with a CVSS score of 3.1, published 2 July 2026.
Which products and versions are affected?
proteus (PyPI) ECOSYSTEM:introduced=5.0.0,fixed=5.0.12, ECOSYSTEM:introduced=5.0.0,fixed=5.0.12,introduced=6.0.0,fixed=6.0.5,introduced=6.1.0,fixed=6.2.2; tryton (PyPI) ECOSYSTEM:introduced=5.0.0,fixed=5.0.12,introduced=6.0.0,fixed=6.0.5,introduced=6.2.0,fixed=6.2.2,fixed=6.2.6,fixed=6.0.16,fixed=5.0.46; trytond (PyPI) ECOSYSTEM:introduced=5.0.0,fixed=5.0.46, ECOSYSTEM:introduced=5.0.0,fixed=5.0.46,introduced=6.0.0,fixed=6.0.16,introduced=6.1.0,fixed=6.2.6.
Is there a fix for CVE-2022-26661?
Yes. proteus (PyPI): upgrade to 5.0.12, 6.2.2 or later; tryton (PyPI): upgrade to 5.0.46 or later; trytond (PyPI): upgrade to 5.0.46, 6.2.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2022-26661?
Check whether you run proteus (PyPI), tryton (PyPI) or trytond (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • proteus (PyPI): upgrade to 5.0.12, 6.2.2 or later
    pip install "proteus>=6.2.2"
  • tryton (PyPI): upgrade to 5.0.46 or later
    pip install "tryton>=5.0.46"
  • trytond (PyPI): upgrade to 5.0.46, 6.2.6 or later
    pip install "trytond>=6.2.6"

Affected products

  • proteus (PyPI) ECOSYSTEM:introduced=5.0.0,fixed=5.0.12, ECOSYSTEM:introduced=5.0.0,fixed=5.0.12,introduced=6.0.0,fixed=6.0.5,introduced=6.1.0,fixed=6.2.2
  • tryton (PyPI) ECOSYSTEM:introduced=5.0.0,fixed=5.0.12,introduced=6.0.0,fixed=6.0.5,introduced=6.2.0,fixed=6.2.2,fixed=6.2.6,fixed=6.0.16,fixed=5.0.46
  • trytond (PyPI) ECOSYSTEM:introduced=5.0.0,fixed=5.0.46, ECOSYSTEM:introduced=5.0.0,fixed=5.0.46,introduced=6.0.0,fixed=6.0.16,introduced=6.1.0,fixed=6.2.6

Identifiers

  • CVE-2022-26661
  • GHSA-cj78-rgw3-4h5p
  • PYSEC-2022-43170
  • PYSEC-2026-3391
  • PYSEC-2026-740

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.