CVE-2026-34525

medium Red Hat
CVSS v3 Base Score
5.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Published: April 1, 2026 (42 days ago)
Last Modified: April 1, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in aiohttp, an asynchronous HTTP client/server framework for Python. This vulnerability allows a remote attacker to send multiple Host headers in a single request. This can lead to unexpected behavior, potentially bypassing security controls or causing cache poisoning, which may result in integrity issues.

CWE

CWE-444

Affected Products

Lightspeed CoreOpenShift LightspeedRed Hat AI Inference ServerRed Hat Ansible Automation Platform 2Red Hat Ansible Automation Platform Ansible Core 2Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat OpenShift AI (RHOAI)Red Hat Satellite 6

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com