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postgresql: PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory

🗓️ 19 May 2026 13:28:04Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 10 Views

A heap-based overflow in PostgreSQL pg_trgm lets a database user cause memory impact with crafted input and may escalate privileges.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64postgresql180:18.3-1.el10_2postgresql18-0:18.3-1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepostgresql180:18.3-1.el10_2postgresql18-0:18.3-1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xpostgresql180:18.3-1.el10_2postgresql18-0:18.3-1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64postgresql180:18.3-1.el10_2postgresql18-0:18.3-1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64postgresql18-contrib0:18.3-1.el10_2postgresql18-contrib-0:18.3-1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepostgresql18-contrib0:18.3-1.el10_2postgresql18-contrib-0:18.3-1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xpostgresql18-contrib0:18.3-1.el10_2postgresql18-contrib-0:18.3-1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64postgresql18-contrib0:18.3-1.el10_2postgresql18-contrib-0:18.3-1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64postgresql18-contrib-debuginfo0:18.3-1.el10_2postgresql18-contrib-debuginfo-0:18.3-1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepostgresql18-contrib-debuginfo0:18.3-1.el10_2postgresql18-contrib-debuginfo-0:18.3-1.el10_2.ppc64le.rpm
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03 Jul 2026 00:51Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.2
EPSS0.00481
SSVC
10