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

Source: https://junglewise.ai/threats/cve-2023-29483-potential-dos-via-the-tudoor-mechanism-in-eventlet-and-dnspython  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-13  
License: CC BY 4.0 with a link back

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)](https://junglewise.ai/threats/technologies/eventlet). Vendors: [PyPI](https://junglewise.ai/threats/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

  ```sh
  pip install "dnspython>=2.6.1"
  ```

- eventlet (PyPI): upgrade to 0.35.2 or later

  ```sh
  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

## Related threats

- [dnspython DNS name decompression denial of service](https://junglewise.ai/threats/cve-2026-114605-dnspython-is-a-dns-toolkit-for-python-prior-to-2-9-0-dns-name)
- [PYSEC-2026-1350 - Eventlet affected by HTTP request smuggling in unparsed trailers](https://junglewise.ai/threats/cve-2025-58068-eventlet-affected-by-http-request-smuggling-in-unparsed-trailers)
- [Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet](https://junglewise.ai/threats/cve-2021-21419-improper-handling-of-highly-compressed-data-data-amplification)