CVE-2023-29483: PYSEC-2026-2472 - Potential DoS via the Tudoor mechanism in eventlet and dnspython

CVE-2023-29483 · Severity: low · CVSS 3.1 · Published 2026-07-13

Potential DoS via the Tudoor mechanism in eventlet and dnspython

Technologies: eventlet (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2023-29483 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-29483 being exploited in the wild.
How severe is CVE-2023-29483?
Low severity, with a CVSS score of 3.1, published 13 July 2026.
Which products and versions are affected?
dnspython (PyPI) ECOSYSTEM:introduced=0,fixed=2.6.1; eventlet (PyPI) ECOSYSTEM:introduced=0,fixed=0.35.2.
Is there a fix for CVE-2023-29483?
Yes. dnspython (PyPI): upgrade to 2.6.1 or later; eventlet (PyPI): upgrade to 0.35.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-29483?
Check whether you run dnspython (PyPI) or eventlet (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

  • dnspython (PyPI): upgrade to 2.6.1 or later
    pip install "dnspython>=2.6.1"
  • eventlet (PyPI): upgrade to 0.35.2 or later
    pip install "eventlet>=0.35.2"

Affected products

  • dnspython (PyPI) ECOSYSTEM:introduced=0,fixed=2.6.1
  • eventlet (PyPI) ECOSYSTEM:introduced=0,fixed=0.35.2

Identifiers

  • CVE-2023-29483
  • GHSA-3rq5-2g8h-59hc
  • PYSEC-2026-1307
  • PYSEC-2026-2472

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