CVE-2026-14664
Last modified
CVE-2026-14664 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. EPSS estimates a 0.44% chance of exploitation in the next 30 days.
Description
Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Postgresql | Postgresql | >= 14.0, < 14.24 |
| Postgresql | Postgresql | >= 15.0, < 15.19 |
| Postgresql | Postgresql | >= 16.0, < 16.15 |
| Postgresql | Postgresql | >= 17.0, < 17.11 |
| Postgresql | Postgresql | >= 18.0, < 18.5 |
References
- https://www.postgresql.org/support/security/CVE-2026-14664/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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