CVE-2026-6638
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
68/100
Published: 2026-05-14
Modified: 2026-11-11
First seen: 2026-11-11
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18, minor versions before PostgreSQL 18.4, 17.10, and 16.14 are affected. Versions before PostgreSQL 16 are unaffected.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| postgresql | postgresql | 16.0 – 16.14 |
References & Advisories (1)
Patch
Vendor Advisory