# SUSE-SU-2025:4433-1: Security update for python39


- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Fix available:** Yes
- **Published:** 17 Dec 2025

## What is SUSE-SU-2025:4433-1?

SUSE-SU-2025:4433-1 is a vulnerability in python39, published on 17 Dec 2025. 

### Official description

This update for python39 fixes the following issues:

* Update to 3.9.25:
- Security
    - gh-137836: Add support of the “plaintext” element, RAWTEXT
      elements “xmp”, “iframe”, “noembed” and “noframes”, and
      optionally RAWTEXT element “noscript” in
      html.parser.HTMLParser.
    - gh-136063: email.message: ensure linear complexity for
      legacy HTTP parameters parsing. Patch by Bénédikt Tran.
- Library
    - gh-98793: Fix argument typechecks in
      _overlapped.WSAConnect() and
      _overlapped.Overlapped.WSASendTo() functions. bpo-44817:
      Ignore WinError 53 (ERROR_BAD_NETPATH), 65
      (ERROR_NETWORK_ACCESS_DENIED) and 161 (ERROR_BAD_PATHNAME)
      when using ntpath.realpath().
- Core and Builtins
    - gh-120384: Fix an array out of bounds crash in
      list_ass_subscript, which could be invoked via some
      specificly tailored input: including concurrent
      modification of a list object, where one thread assigns
      a slice and another clears it.
    - gh-120298: Fix use-after free in list_richcompare_impl
      which can be invoked via some specificly tailored evil
      input.

## Which versions are affected by SUSE-SU-2025:4433-1?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `python39` | openSUSE:Leap 15.6 | All versions | 3.9.25-150300.4.87.1 |
| `python39-core` | openSUSE:Leap 15.6 | All versions | 3.9.25-150300.4.87.1 |
| `python39-documentation` | openSUSE:Leap 15.6 | All versions | 3.9.25-150300.4.87.1 |

## How do I fix SUSE-SU-2025:4433-1?

Upgrade to a fixed version.

## Is SUSE-SU-2025:4433-1 being exploited?

There is no known exploitation of SUSE-SU-2025:4433-1 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for SUSE-SU-2025:4433-1 and fix it if it is affected.

What it is: SUSE-SU-2025:4433-1 is a vulnerability in python39, published on 17 Dec 2025. 
Exploitation: There is no known exploitation of SUSE-SU-2025:4433-1 in the wild and no public exploit code.

Affected product: python39. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/SUSE-SU-2025-4433-1/ (Markdown: https://insights.sbomify.com/SUSE-SU-2025-4433-1/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/SUSE-SU-2025:4433-1

---
From sbomify Insights: https://insights.sbomify.com/SUSE-SU-2025-4433-1/
Summaries are generated and may contain mistakes; the official description above is the record.