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PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

CVE-2026-6474

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.

Version Information

Affected branchIntroducedFixed InFix Published
14—14.232026-05-14
15—15.182026-05-14
16—16.142026-05-14
17—17.102026-05-14
18—18.42026-05-14

CVSS 3.0

Overall Score4.3
Componentcore server
VectorAV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

First published: 2026-05-14

Historical source observations

These dated records preserve the original source claims separately from the reviewed fix list.

center · 2026-10-03 12:08:35.169032+08

  • PostgreSQL 18 · Original minor coordinate: 4
  • PostgreSQL 17 · Original minor coordinate: 10
  • PostgreSQL 16 · Original minor coordinate: 14
  • PostgreSQL 15 · Original minor coordinate: 18
  • PostgreSQL 14 · Original minor coordinate: 23

pgweb · 2026-10-03 12:08:55.967155+08

  • PostgreSQL 18 · Original minor coordinate: 4
  • PostgreSQL 17 · Original minor coordinate: 10
  • PostgreSQL 16 · Original minor coordinate: 14
  • PostgreSQL 15 · Original minor coordinate: 18
  • PostgreSQL 14 · Original minor coordinate: 23

Original security advisory · JSON · All advisories