CVE-2026-14676
Last modified
CVE-2026-14676 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.
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 | >= 18.0, < 18.5 |
References
- https://www.postgresql.org/support/security/CVE-2026-14676/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-14676?
How severe is CVE-2026-14676?
How do I fix CVE-2026-14676?
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.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-14669Heap buffer overflow in PostgreSQL to_char(timestamptz) allo…8.8
- CVE-2026-1467A flaw was found in libsoup, an HTTP client library. This vu…5.3
- CVE-2026-14670Heap buffer overflow in PostgreSQL plperl return of a tied h…8.8
- CVE-2026-14671Type confusion in PostgreSQL module "refint" allows an objec…8.8
- CVE-2026-14672Observable response discrepancy in PostgreSQL SCRAM authenti…5.3
- CVE-2026-14673Untrusted search path in PostgreSQL amcheck allows a grantee…3.8
- CVE-2026-14677Integer wraparound in PostgreSQL 32-bit builds of pltcl and …8.8
- CVE-2026-14678Buffer over-read in PostgreSQL pg_trgm index picksplit funct…4.3
- CVE-2026-14679Stack buffer overflow in PostgreSQL argument name matching a…8.2
- CVE-2026-1468QuickCMS is vulnerable to Cross-Site Request Forgery across …5.1
- CVE-2026-14680Type confusion with PostgreSQL "internal" data type argument…8.8
- CVE-2026-14681Improper enforcement of message integrity in PostgreSQL GSSA…4.2
Are you affected by CVE-2026-14676?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST