CVE-2026-6637
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 refint allows stack buffer overflow and SQL injection
Stack buffer overflow in PostgreSQL module "refint" allows an unprivileged database user to execute arbitrary code as the operating system user running the database. A distinct attack is possible if the application declares a user-controlled column as a "refint" cascade primary key and facilitates user-controlled updates to that column. In that case, a SQL injection allows a primary key update value provider to execute arbitrary SQL as the database user performing the primary key update. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 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 | 18.4 | Unavailable | None listed |
| 17 | affected | rpm | 17.10 | Unavailable | None listed |
| 16 | affected | rpm | 16.14 | Unavailable | None listed |
| 15 | affected | rpm | 15.18 | Unavailable | None listed |
| 0 | affected | rpm | 14.23 | Unavailable | None listed |