RHSA-2026:61254: Important: postgresql:12 security update

Published Aug 31, 2026
·
Updated

Important: postgresql:12 security update

Other sources

PostgreSQL is an advanced object-relational database management system (DBMS).Security Fix(es): postgresql: PostgreSQL: Denial of Service via uncontrolled recursion in SSL/GSS negotiation (CVE-2026-6479) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

23 affected componentsFixes available
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life
redhat/pgaudit<1.4.0-5.module+el8.5.0+11354+78b3c9c5
1.4.0-5.module+el8.5.0+11354+78b3c9c5
redhat/postgres-decoderbufs<0.10.0-2.module+el8.5.0+11354+78b3c9c5
0.10.0-2.module+el8.5.0+11354+78b3c9c5
redhat/postgresql<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/pgaudit<1.4.0-5.module+el8.5.0+11354+78b3c9c5
1.4.0-5.module+el8.5.0+11354+78b3c9c5
redhat/pgaudit-debuginfo<1.4.0-5.module+el8.5.0+11354+78b3c9c5
1.4.0-5.module+el8.5.0+11354+78b3c9c5
redhat/pgaudit-debugsource<1.4.0-5.module+el8.5.0+11354+78b3c9c5
1.4.0-5.module+el8.5.0+11354+78b3c9c5
redhat/postgres-decoderbufs<0.10.0-2.module+el8.5.0+11354+78b3c9c5
0.10.0-2.module+el8.5.0+11354+78b3c9c5
redhat/postgres-decoderbufs-debuginfo<0.10.0-2.module+el8.5.0+11354+78b3c9c5
0.10.0-2.module+el8.5.0+11354+78b3c9c5
redhat/postgres-decoderbufs-debugsource<0.10.0-2.module+el8.5.0+11354+78b3c9c5
0.10.0-2.module+el8.5.0+11354+78b3c9c5
redhat/postgresql-contrib-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-debugsource<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-docs-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-plperl-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-plpython3-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-pltcl-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-server-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-server-devel-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-test-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-upgrade-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5
redhat/postgresql-upgrade-devel-debuginfo<12.22-1.module+el8.6.0+24734+8d3d63df.5
12.22-1.module+el8.6.0+24734+8d3d63df.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/pgaudit to a version that resolves this vulnerability.

    Fixed in 1.4.0-5.module+el8.5.0+11354+78b3c9c5
  2. Upgrade

    Upgrade redhat/postgres-decoderbufs to a version that resolves this vulnerability.

    Fixed in 0.10.0-2.module+el8.5.0+11354+78b3c9c5
  3. Upgrade

    Upgrade redhat/postgresql to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  4. Upgrade

    Upgrade redhat/pgaudit-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.4.0-5.module+el8.5.0+11354+78b3c9c5
  5. Upgrade

    Upgrade redhat/pgaudit-debugsource to a version that resolves this vulnerability.

    Fixed in 1.4.0-5.module+el8.5.0+11354+78b3c9c5
  6. Upgrade

    Upgrade redhat/postgres-decoderbufs-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.10.0-2.module+el8.5.0+11354+78b3c9c5
  7. Upgrade

    Upgrade redhat/postgres-decoderbufs-debugsource to a version that resolves this vulnerability.

    Fixed in 0.10.0-2.module+el8.5.0+11354+78b3c9c5
  8. Upgrade

    Upgrade redhat/postgresql-contrib-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  9. Upgrade

    Upgrade redhat/postgresql-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  10. Upgrade

    Upgrade redhat/postgresql-debugsource to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  11. Upgrade

    Upgrade redhat/postgresql-docs-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  12. Upgrade

    Upgrade redhat/postgresql-plperl-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  13. Upgrade

    Upgrade redhat/postgresql-plpython3-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  14. Upgrade

    Upgrade redhat/postgresql-pltcl-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  15. Upgrade

    Upgrade redhat/postgresql-server-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  16. Upgrade

    Upgrade redhat/postgresql-server-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  17. Upgrade

    Upgrade redhat/postgresql-test-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  18. Upgrade

    Upgrade redhat/postgresql-upgrade-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  19. Upgrade

    Upgrade redhat/postgresql-upgrade-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 12.22-1.module+el8.6.0+24734+8d3d63df.5
  20. Compensating control

    Review the linked Red Hat advisory (access.redhat.com/articles/11258) for guidance on applying the PostgreSQL 12 security update addressing the DoS via uncontrolled recursion in SSL/GSS negotiation (CVE-2026-6479).

Event History

Aug 31, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·12:55 AM
Data Sourced
via Red Hat·12:55 AM
Severity

Frequently Asked Questions

1

Which components should be reviewed for this update?

The advisory lists redhat/postgresql, redhat/pgaudit, redhat/postgres-decoderbufs, and their listed debuginfo or debugsource packages. It also applies to the Red Hat Enterprise Linux Server AUS offering and the x86_64 Extended Life Cycle Long Life offering named in the advisory.

2

What is the operational impact of the addressed issue?

CVE-2026-6479 is described as a denial-of-service issue caused by uncontrolled recursion during SSL/GSS negotiation in PostgreSQL.

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