CVE-2026-116328
HIGH
MEDIUM
Priority: 0.05
BB Relevance:
68/100
Published: 2026-11-12
Modified: 2026-11-14
First seen: 2026-11-12
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
Integer wraparound in PostgreSQL generation memory contexts allows a database user to execute arbitrary code as the operating system user running the database, via freeing an allocation larger than 1 GB and causing its block to be reused for smaller chunks whose back-pointer offset cannot represent that position. Within major versions 16-18, minor versions before PostgreSQL 18.7, 17.12, and 16.16 are affected. Versions before PostgreSQL 16 are unaffected.
Weakness Classification (1)
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| n/a | PostgreSQL | 18 < 18.7 |
| n/a | PostgreSQL | 17 < 17.12 |
| n/a | PostgreSQL | 16 < 16.16 |
| n/a | PostgreSQL | 18 < 18.7 |
| n/a | PostgreSQL | 17 < 17.12 |
| n/a | PostgreSQL | 16 < 16.16 |
| n/a | PostgreSQL | 18 < 18.7 |
| n/a | PostgreSQL | 17 < 17.12 |
| n/a | PostgreSQL | 16 < 16.16 |