Cyber Posture

CVE-2026-6475

High

Published: 14 May 2026

Published
14 May 2026
Modified
14 May 2026
KEV Added
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Patch
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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0005 14.2th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-6475 is a high-severity UNIX Symbolic Link (Symlink) Following (CWE-61) vulnerability in Postgresql (inferred from references). Its CVSS base score is 8.8 (High).

Operationally, ranked at the 14.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

NVD Description

Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts…

more

the origin superuser, due to features like shared_preload_libraries. Hence, the attack has practical implications only if one takes relevant action between these commands and server start, like moving the files to a different VM or snapshotting the VM. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)
CWE-61

Affected Products

Postgresql
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inferred from references and description; NVD did not file a CPE for this CVE

References