CVE-2026-59890 (MEDIUM): detected in Lambda Docker Images.

## CVE Details

| **CVE ID** | **Severity** | **Affected Package** | **Installed Version** | **Fixed Version** | **Date Published** | **Date of Scan** |
|-----------------|--------------|----------------------|-----------------------|-------------------|--------------------|------------------|
| [CVE-2026-59890](https://avd.aquasec.com/nvd/cve-2026-59890) | `MEDIUM` | `setuptools` | `79.0.1` | `83.0.0` | `2026-07-08T17:17:27.02Z` | `2026-07-22T10:18:36.096608759Z` |

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## Affected Docker Images

| **Image Name** | **SHA** |
|-----------------------------|---------------------------------------|
| `public.ecr.aws/lambda/python:3.11` | `public.ecr.aws/lambda/python@sha256:f04e2cb49a443eddde38f55dd13e206861c2cedc080c4c99be8133ed2febf562` |
| `public.ecr.aws/lambda/python:3.10` | `public.ecr.aws/lambda/python@sha256:f368daa51f912f03ba691407058576d3927678fc768491db8babfc7d0cd9e665` |

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## Description

> setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.

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### Remediation Steps
- Update the affected package `setuptools` from version `79.0.1` to `83.0.0`.

### About this issue
- This issue may not contain all the information about the CVE nor the images it affects.
- This issue will not be updated with new information and the list of affected images may have changed since the creation of this issue.
- For more, visit [Lambda Watchdog](https://lambdawatchdog.com).
- This issue was created automatically by Lambda Watchdog.

Start by reviewing how the Lambda Python 3.10 and 3.11 Docker images install or include setuptools. The report identifies version 79.0.1 and requests updating it to 83.0.0; check the image build definitions and verify the affected images use the fixed version. The issue names no files or tests, so locate the relevant build entry points in the repository first.

Written by the indexing model from the issue text.