Bug 2477445 (CVE-2026-6479) - CVE-2026-6479 postgresql: PostgreSQL: Denial of Service via uncontrolled recursion in SSL/GSS negotiation
Summary: CVE-2026-6479 postgresql: PostgreSQL: Denial of Service via uncontrolled recu...
Keywords:
Status: NEW
Alias: CVE-2026-6479
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2499706 2499707 2499708 2499705
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-14 14:02 UTC by OSIDB Bzimport
Modified: 2026-09-01 15:28 UTC (History)
9 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-2026:52395 0 None None None 2026-08-10 03:04:50 UTC
Red Hat Product Errata RHSA-2026:52396 0 None None None 2026-08-10 02:37:24 UTC
Red Hat Product Errata RHSA-2026:57633 0 None None None 2026-08-20 18:08:14 UTC
Red Hat Product Errata RHSA-2026:60265 0 None None None 2026-08-26 12:00:33 UTC
Red Hat Product Errata RHSA-2026:61254 0 None None None 2026-08-31 03:58:45 UTC
Red Hat Product Errata RHSA-2026:61255 0 None None None 2026-08-31 03:14:28 UTC
Red Hat Product Errata RHSA-2026:62116 0 None None None 2026-09-01 15:28:52 UTC
Red Hat Product Errata RHSA-2026:62117 0 None None None 2026-09-01 15:25:37 UTC

Description OSIDB Bzimport 2026-05-14 14:02:03 UTC 
Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service.  If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
Comment 3 errata-xmlrpc 2026-08-10 02:37:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:52396 https://access.redhat.com/errata/RHSA-2026:52396
Comment 4 errata-xmlrpc 2026-08-10 03:04:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:52395 https://access.redhat.com/errata/RHSA-2026:52395
Comment 5 errata-xmlrpc 2026-08-20 18:08:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:57633 https://access.redhat.com/errata/RHSA-2026:57633
Comment 6 errata-xmlrpc 2026-08-26 12:00:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:60265 https://access.redhat.com/errata/RHSA-2026:60265
Comment 7 errata-xmlrpc 2026-08-31 03:14:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:61255 https://access.redhat.com/errata/RHSA-2026:61255
Comment 8 errata-xmlrpc 2026-08-31 03:58:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:61254 https://access.redhat.com/errata/RHSA-2026:61254
Comment 9 errata-xmlrpc 2026-09-01 15:25:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:62117 https://access.redhat.com/errata/RHSA-2026:62117
Comment 10 errata-xmlrpc 2026-09-01 15:28:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:62116 https://access.redhat.com/errata/RHSA-2026:62116
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