Red Hat Product Errata RHSA-2026:61255 - Security Advisory Issued: 2026-08-31 Updated: 2026-08-31 RHSA-2026:61255 - Security Advisory Overview Updated Packages Synopsis Important: postgresql:12 security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for the postgresql:12 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64 Red Hat Enterprise Linux Server - AUS 8.4 x86_64 Fixes BZ - 2477445 - CVE-2026-6479 postgresql: PostgreSQL: Denial of Service via uncontrolled recursion in SSL/GSS negotiation CVEs CVE-2026-6479 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 SRPM pgaudit-1.4.0-6.module+el8.4.0+11288+c193d6d7.src.rpm SHA-256: b03a38090ec961b4c6fe83ae8e373284f0576a5472251536dfb1d10916b31177 postgres-decoderbufs-0.10.0-2.module+el8.4.0+11288+c193d6d7.src.rpm SHA-256: 4a6ff774095320178b96a836d62d5db488a36d985f86c0df120df6bdffe444e1 postgresql-12.22-1.module+el8.4.0+24733+2481cd1e.5.src.rpm SHA-256: 96f09383b17995f379d4a8e92a1e9678a5a973905c39c220db2396304ae051d3 x86_64 pgaudit-1.4.0-6.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: 0bbd0a783d7399c0a70bace3f71bd9bc706d57cfbd5a92355253eac38ef71d64 pgaudit-debuginfo-1.4.0-6.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: 7ec70c2c12b53aa6aef901acc2c48655d7acc11b45db3a5a8728a4eff214a610 pgaudit-debugsource-1.4.0-6.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: efae4253c28d1d3774ef16406da959ed11d8dd45ba769426433fb7433cadee0c postgres-decoderbufs-0.10.0-2.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: a6b90b09552fcc2cc7778ea384a195d97850282bbab941aa1d37fd4c314d94ac postgres-decoderbufs-debuginfo-0.10.0-2.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: a30fa22fccb754620843adaba31b89c77e7c757cba5fc3707804b51190dd02ef postgres-decoderbufs-debugsource-0.10.0-2.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: 5def5e99e1ff1ae1444788ab565fcd9d0ba1b9bea1a1650c3302fdaca8585ec3 postgresql-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: d59547cdfd9a648cc5141008e4725be54b7b66dcaffc17253135a192d17a5e4f postgresql-contrib-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 2145aaa7fa2a57983d1a1ba248aed9532d7ecb1a0d8e035f29f9767803e57825 postgresql-contrib-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 5542d14102964617cd04a8d0cb48a96751df6b4a670ee7e676a499c3bb6372d7 postgresql-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 8d521272b57cc62d755f8e265e92ca2cb238811a5952aa4204e8c4d3b51ec042 postgresql-debugsource-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: bae1b6e72d513da2eebebccbcaa1480aefd169980934f22548b743edad67c56e postgresql-docs-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: a7fba87a1de85270cc4d40337f262fdfa787f5a315ef2a12b679a29af419cf68 postgresql-docs-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: e110586829fe62cfe7aa18903a09b984c94bdf8dcda9bcf75238750eeba77cf3 postgresql-plperl-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: bf0ed54f6e8336663b7a917b95f337f7781bf510aeb1ccf302f54e6f1c29188a postgresql-plperl-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 639dbf44a2ab03e3f4b7e6f7e75e830411762fdb1288b14076f66702c59988cc postgresql-plpython3-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 33cd05f8a8e1201c2142da86fc7ce5795bea9dd0baf4c9ab415cfa37b8d576af postgresql-plpython3-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: cb85ad5037678cbb5ea04d9cceedc1cc15309e2df81ca4b02a5be678ae34d6a1 postgresql-pltcl-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 3f351966b7c5bb976bb24379c9408083d4138f608ae782e98061de302cfe0224 postgresql-pltcl-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 8175d36dcce824ed200e8616428672ba4375b88743124b9221012c8400084080 postgresql-server-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 167cbfadddbf5997d5227d442fde30092cd25a8a839dd0de680f8379867ba00d postgresql-server-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: f6183e69d33ba504a7089c401ec1ea78970926fd36ae25c4f975e3b0095e28b5 postgresql-server-devel-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 3f2d8eb0c4c6fe74754718b6357d66901e48a02ba6c5e339dbfee1e68455a41f postgresql-server-devel-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: f65352edffd389c9598ff278c804d76c4b8e82c3832df6bf94b79a31a2f790fd postgresql-static-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: a87c3cb71b09b2a23b78cc1c0461af5c6879799a57e79019bdd5936c78eaf117 postgresql-test-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 3973bdae7a5486f9ebd0dba620cd4b13f2a1c1e08ea0966a8ebb32a916b7c13f postgresql-test-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: a0905d23a96cfc47deb22ce040afd7357d9459203983fed9d79fcfb00bff4d31 postgresql-test-rpm-macros-12.22-1.module+el8.4.0+24733+2481cd1e.5.noarch.rpm SHA-256: b056c72b948f587f8211269d4184c975d3f93c4ec6dac2b5f74f539325e37641 postgresql-upgrade-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: caea610ce9b023b508fa36df5f49a61dab6b1c4db0c24034ba1a14b801ed25a7 postgresql-upgrade-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: b7b113b67dd207538300c46c1dcac29536116a7ef45c9813d40d8701267cac06 postgresql-upgrade-devel-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 5663f80ade8ff43c72910892d63ae94a93c2bf72f1a7a04cea14d9cb48896e02 postgresql-upgrade-devel-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 72cbde56e93957c886469a828d724ee57f438538b1c60fa1f7d029142e229328 Red Hat Enterprise Linux Server - AUS 8.4 SRPM pgaudit-1.4.0-6.module+el8.4.0+11288+c193d6d7.src.rpm SHA-256: b03a38090ec961b4c6fe83ae8e373284f0576a5472251536dfb1d10916b31177 postgres-decoderbufs-0.10.0-2.module+el8.4.0+11288+c193d6d7.src.rpm SHA-256: 4a6ff774095320178b96a836d62d5db488a36d985f86c0df120df6bdffe444e1 postgresql-12.22-1.module+el8.4.0+24733+2481cd1e.5.src.rpm SHA-256: 96f09383b17995f379d4a8e92a1e9678a5a973905c39c220db2396304ae051d3 x86_64 pgaudit-1.4.0-6.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: 0bbd0a783d7399c0a70bace3f71bd9bc706d57cfbd5a92355253eac38ef71d64 pgaudit-debuginfo-1.4.0-6.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: 7ec70c2c12b53aa6aef901acc2c48655d7acc11b45db3a5a8728a4eff214a610 pgaudit-debugsource-1.4.0-6.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: efae4253c28d1d3774ef16406da959ed11d8dd45ba769426433fb7433cadee0c postgres-decoderbufs-0.10.0-2.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: a6b90b09552fcc2cc7778ea384a195d97850282bbab941aa1d37fd4c314d94ac postgres-decoderbufs-debuginfo-0.10.0-2.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: a30fa22fccb754620843adaba31b89c77e7c757cba5fc3707804b51190dd02ef postgres-decoderbufs-debugsource-0.10.0-2.module+el8.4.0+11288+c193d6d7.x86_64.rpm SHA-256: 5def5e99e1ff1ae1444788ab565fcd9d0ba1b9bea1a1650c3302fdaca8585ec3 postgresql-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: d59547cdfd9a648cc5141008e4725be54b7b66dcaffc17253135a192d17a5e4f postgresql-contrib-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 2145aaa7fa2a57983d1a1ba248aed9532d7ecb1a0d8e035f29f9767803e57825 postgresql-contrib-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 5542d14102964617cd04a8d0cb48a96751df6b4a670ee7e676a499c3bb6372d7 postgresql-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 8d521272b57cc62d755f8e265e92ca2cb238811a5952aa4204e8c4d3b51ec042 postgresql-debugsource-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: bae1b6e72d513da2eebebccbcaa1480aefd169980934f22548b743edad67c56e postgresql-docs-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: a7fba87a1de85270cc4d40337f262fdfa787f5a315ef2a12b679a29af419cf68 postgresql-docs-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: e110586829fe62cfe7aa18903a09b984c94bdf8dcda9bcf75238750eeba77cf3 postgresql-plperl-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: bf0ed54f6e8336663b7a917b95f337f7781bf510aeb1ccf302f54e6f1c29188a postgresql-plperl-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 639dbf44a2ab03e3f4b7e6f7e75e830411762fdb1288b14076f66702c59988cc postgresql-plpython3-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 33cd05f8a8e1201c2142da86fc7ce5795bea9dd0baf4c9ab415cfa37b8d576af postgresql-plpython3-debuginfo-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: cb85ad5037678cbb5ea04d9cceedc1cc15309e2df81ca4b02a5be678ae34d6a1 postgresql-pltcl-12.22-1.module+el8.4.0+24733+2481cd1e.5.x86_64.rpm SHA-256: 3f351966b7c5bb976bb243