CVE-2026-18408
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
PostgreSQL psql \unrestrict lets superuser of pg_dump origin server execute arbitrary code in psql client
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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
PostgreSQL
- Vendor
- n/a
- Product
- PostgreSQL
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 18 | affected | rpm | 18.6 | Unavailable | None listed |
| 17 | affected | rpm | 17.11 | Unavailable | None listed |
| 16 | affected | rpm | 16.15 | Unavailable | None listed |
| 15 | affected | rpm | 15.19 | Unavailable | None listed |
| 0 | affected | rpm | 14.24 | Unavailable | None listed |