Format string error in PostgreSQL - CVE-2026-6474
Published: May 14, 2026
Vulnerability identifier: #VU131456
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-6474
CWE-ID: CWE-134
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PostgreSQL Global Development Group
Affected software:
PostgreSQL
PostgreSQL
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to an externally-controlled format string in the timeofday() function when processing crafted timezone zones. A remote user can supply a crafted timezone zone to disclose sensitive information.
The issue can expose portions of server memory.
How to mitigate CVE-2026-6474
Install security update from vendor's website.