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CVE-2026-18408 on CTRL-OS 26.05

Aliases: CVE-2026-18408

Packages: postgresql_14, postgresql_15, postgresql_16, postgresql_17, postgresql_18

Status: Plausible

Advisory Information

Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql \restrict meta-command input expansion. The fix for CVE-2025-8714 introduced \restrict and \unrestrict to block this attack, but \unrestrict itself was sufficient for an attack. pg_dumpall is also affected. pg_restore is affected when used to generate a plain-format dump. Non-core use of \restrict would be affected, but we've not identified non-core use. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Updates

2026-08-14 18:02 CEST

Metadata changes:

  • Status for package postgresql_14: “Plausible”
  • Status for package postgresql_15: “Plausible”
  • Status for package postgresql_16: “Plausible”
  • Status for package postgresql_17: “Plausible”
  • Status for package postgresql_18: “Plausible”

(Amended on: 2026-08-14 18:03 CEST)

2026-08-14 18:02 CEST

Metadata changes:

  • Status for package postgresql_14: “New”
  • Status for package postgresql_15: “New”
  • Status for package postgresql_16: “New”
  • Status for package postgresql_17: “New”
  • Status for package postgresql_18: “New”