Bug 2510825 (CVE-2026-69244) - CVE-2026-69244 aiohttp: AIOHTTP: Denial of Service via malformed HTTP responses
Summary: CVE-2026-69244 aiohttp: AIOHTTP: Denial of Service via malformed HTTP responses
Keywords:
Status: NEW
Alias: CVE-2026-69244
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2519528 2519529
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-03 22:03 UTC by OSIDB Bzimport
Modified: 2026-09-03 22:58 UTC (History)
75 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:59135 0 None None None 2026-08-24 16:26:14 UTC
Red Hat Product Errata RHSA-2026:59136 0 None None None 2026-08-24 16:27:14 UTC
Red Hat Product Errata RHSA-2026:63327 0 None None None 2026-09-03 22:58:07 UTC
Red Hat Product Errata RHSA-2026:63386 0 None None None 2026-09-03 22:02:03 UTC
Red Hat Product Errata RHSA-2026:63387 0 None None None 2026-09-03 22:57:31 UTC

Description OSIDB Bzimport 2026-08-03 22:03:09 UTC 
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses and malformed request or response bytes at the buffer end. This issue is fixed in version 3.14.3.
Comment 4 errata-xmlrpc 2026-08-24 16:26:10 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.5 for RHEL 9
  Red Hat Ansible Automation Platform 2.5 for RHEL 8

Via RHSA-2026:59135 https://access.redhat.com/errata/RHSA-2026:59135
Comment 5 errata-xmlrpc 2026-08-24 16:27:10 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 9
  Red Hat Ansible Automation Platform 2.6 for RHEL 10

Via RHSA-2026:59136 https://access.redhat.com/errata/RHSA-2026:59136
Comment 6 errata-xmlrpc 2026-09-03 22:01:59 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.18 for RHEL 9

Via RHSA-2026:63386 https://access.redhat.com/errata/RHSA-2026:63386
Comment 7 errata-xmlrpc 2026-09-03 22:57:27 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.17 for RHEL 9

Via RHSA-2026:63387 https://access.redhat.com/errata/RHSA-2026:63387
Comment 8 errata-xmlrpc 2026-09-03 22:58:03 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.16 for RHEL 8
  Red Hat Satellite 6.16 for RHEL 9

Via RHSA-2026:63327 https://access.redhat.com/errata/RHSA-2026:63327
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