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postgresql: PostgreSQL: Operating system account hijack via symlink following in pg_basebackup and pg_rewind

🗓️ 16 Jun 2026 08:05:39Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 7 Views

PostgreSQL flaw lets an origin superuser hijack the OS account via symlink following in pg_basebackup and pg_rewind.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.9aarch64pg_repack1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.aarch64.rpm
Red Hat Enterprise Linux8.9ppc64lepg_repack1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.ppc64le.rpm
Red Hat Enterprise Linux8.9s390xpg_repack1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.s390x.rpm
Red Hat Enterprise Linux8.9x86_64pg_repack1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.x86_64.rpm
Red Hat Enterprise Linux8.9aarch64pg_repack-debuginfo1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-debuginfo-1.4.8-1.module+el8.9.0+19797+c4ce5969.aarch64.rpm
Red Hat Enterprise Linux8.9ppc64lepg_repack-debuginfo1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-debuginfo-1.4.8-1.module+el8.9.0+19797+c4ce5969.ppc64le.rpm
Red Hat Enterprise Linux8.9s390xpg_repack-debuginfo1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-debuginfo-1.4.8-1.module+el8.9.0+19797+c4ce5969.s390x.rpm
Red Hat Enterprise Linux8.9x86_64pg_repack-debuginfo1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-debuginfo-1.4.8-1.module+el8.9.0+19797+c4ce5969.x86_64.rpm
Red Hat Enterprise Linux8.9aarch64pg_repack-debugsource1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-debugsource-1.4.8-1.module+el8.9.0+19797+c4ce5969.aarch64.rpm
Red Hat Enterprise Linux8.9ppc64lepg_repack-debugsource1.4.8-1.module+el8.9.0+19797+c4ce5969pg_repack-debugsource-1.4.8-1.module+el8.9.0+19797+c4ce5969.ppc64le.rpm
Rows per page

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16 Jul 2026 22:03Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.18.8
EPSS0.00324
SSVC
CWE-59
PostgreSQLsymlink vulnerabilitybasebackuprewindoperating system hijack
7