Bug 2496765 (CVE-2026-8924) - CVE-2026-8924 curl: curl: Cookie injection via malicious HTTP server using super cookies
Summary: CVE-2026-8924 curl: curl: Cookie injection via malicious HTTP server using su...
Keywords:
Status: NEW
Alias: CVE-2026-8924
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2497598 2497599 2497597
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-03 07:01 UTC by OSIDB Bzimport
Modified: 2026-09-28 14:23 UTC (History)
46 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-2026:69125 0 None None None 2026-09-21 06:14:42 UTC
Red Hat Product Errata RHSA-2026:72506 0 None None None 2026-09-28 14:23:48 UTC

Description OSIDB Bzimport 2026-07-03 07:01:55 UTC 
A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set
'super cookies' that bypass the Public Suffix List check. This enables an
attacker-controlled origin to inject cookies that curl subsequently scopes and
transmits to unrelated third-party domains.
Comment 3 Jon Orris 2026-09-21 06:14:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:69125 https://access.redhat.com/errata/RHSA-2026:69125
Comment 4 Jon Orris 2026-09-28 14:23:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:72506 https://access.redhat.com/errata/RHSA-2026:72506
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