REDHAT-BUG-2477448: High severity PostgreSQL postgresql vulnerability

Published May 14, 2026
·
Updated

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Affected Software

1 affected component
PostgreSQL postgresql<18.4, <17.10, <16.14, <15.18, <14.23

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade PostgreSQL to a version that resolves this vulnerability.

    Fixed in 14.23
  2. Upgrade

    Upgrade PostgreSQL to a version that resolves this vulnerability.

    Fixed in 15.18
  3. Upgrade

    Upgrade PostgreSQL to a version that resolves this vulnerability.

    Fixed in 16.14
  4. Upgrade

    Upgrade PostgreSQL to a version that resolves this vulnerability.

    Fixed in 17.10
  5. Upgrade

    Upgrade PostgreSQL to a version that resolves this vulnerability.

    Fixed in 18.4

Event History

May 14, 2026
Data Sourced
via Red Hat·02:02 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2477448?

The severity of REDHAT-BUG-2477448 is high with a score of 7.

2

How do I fix REDHAT-BUG-2477448?

To fix REDHAT-BUG-2477448, you should update PostgreSQL to the latest patched version provided by Red Hat.

3

What vulnerability does REDHAT-BUG-2477448 describe?

REDHAT-BUG-2477448 describes an integer wraparound vulnerability in PostgreSQL server features that may allow arbitrary code execution.

4

Who is affected by REDHAT-BUG-2477448?

Unprivileged database users of PostgreSQL may be affected by REDHAT-BUG-2477448.

5

What is the potential impact of REDHAT-BUG-2477448?

The potential impact of REDHAT-BUG-2477448 includes the execution of arbitrary code as the operating system user running the PostgreSQL database.

Contact

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