CVE-2026-16239
Last modified
CVE-2026-16239 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Metrics
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-2026-16239/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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