Medium severity · published May 14, 2026
CVE-2026-6474
PostgreSQL timeofday() can disclose portions of server memory
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PO
PostgreSQL · PostgreSQL
18 before 18.4; 17 before 17.10; 16 before 16.14; 15 before 15.18; before 14.23 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6474
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6474
Patch
https://www.postgresql.org/support/security/CVE-2026-6474/
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