Bug 2446449 (CVE-2026-3784) - CVE-2026-3784 curl: curl: Unauthorized access due to improper HTTP proxy connection reuse
Summary: CVE-2026-3784 curl: curl: Unauthorized access due to improper HTTP proxy conn...
Keywords:
Status: NEW
Alias: CVE-2026-3784
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2446496 2446497 2446488 2446489 2446490 2446491 2446492 2446493 2446494 2446495 2446498 2446499 2446500 2446501
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-11 11:01 UTC by OSIDB Bzimport
Modified: 2026-08-31 13:13 UTC (History)
43 users (show)

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

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:55450 0 None None None 2026-08-17 04:40:11 UTC

Description OSIDB Bzimport 2026-03-11 11:01:20 UTC 
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a
server, even if the new request uses different credentials for the HTTP proxy.
The proper behavior is to create or use a separate connection.
Comment 4 errata-xmlrpc 2026-08-17 04:40:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:55450 https://access.redhat.com/errata/RHSA-2026:55450
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