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postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code

🗓️ 12 Mar 2026 22:40:08Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

PostgreSQL fails to validate multibyte text length, enabling buffer overrun and arbitrary code execution as the OS user.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.4aarch64pg_repack0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-0:1.4.8-1.module+el9.4.0+20427+07482b8c.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64lepg_repack0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-0:1.4.8-1.module+el9.4.0+20427+07482b8c.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xpg_repack0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-0:1.4.8-1.module+el9.4.0+20427+07482b8c.s390x.rpm
Red Hat Enterprise Linux9.4x86_64pg_repack0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-0:1.4.8-1.module+el9.4.0+20427+07482b8c.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64pg_repack-debuginfo0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-debuginfo-0:1.4.8-1.module+el9.4.0+20427+07482b8c.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64lepg_repack-debuginfo0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-debuginfo-0:1.4.8-1.module+el9.4.0+20427+07482b8c.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xpg_repack-debuginfo0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-debuginfo-0:1.4.8-1.module+el9.4.0+20427+07482b8c.s390x.rpm
Red Hat Enterprise Linux9.4x86_64pg_repack-debuginfo0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-debuginfo-0:1.4.8-1.module+el9.4.0+20427+07482b8c.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64pg_repack-debugsource0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-debugsource-0:1.4.8-1.module+el9.4.0+20427+07482b8c.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64lepg_repack-debugsource0:1.4.8-1.module+el9.4.0+20427+07482b8cpg_repack-debugsource-0:1.4.8-1.module+el9.4.0+20427+07482b8c.ppc64le.rpm
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03 Jul 2026 00:51Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.18.8
EPSS0.01079
SSVC
2