HTTP Response Splitting Affecting python39-oci-sdk-docs package, versions <0:2.187.0-1.0.5.el9


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.46% (40th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE9-PYTHON39OCISDKDOCS-21431993
  • published22 Oct 2026
  • disclosed1 Apr 2026

Introduced: 1 Apr 2026

CVE-2026-34520  (opens in a new tab)
CWE-113  (opens in a new tab)

How to fix?

Upgrade Oracle:9 python39-oci-sdk-docs to version 0:2.187.0-1.0.5.el9 or higher.
This issue was patched in ELSA-2026-604898.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39-oci-sdk-docs package and not the python39-oci-sdk-docs package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser (the default for most installs) accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4.

CVSS Base Scores

version 3.1