---
id: CVE-2026-2005
title: >-
  Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to
  execute arbitrary code as the operating system user running the database
summary: >-
  Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to
  execute arbitrary code as the operating system user running the database. 
  Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-122
  - CWE-120
vendor: postgresql
product: postgresql
affected:
  - 'postgresql >= 14.0, < 14.21'
  - 'postgresql >= 15.0, < 15.16'
  - 'postgresql >= 16.0, < 16.12'
  - 'postgresql >= 17.0, < 17.8'
  - 'postgresql >= 18.0, < 18.2'
patched:
  - postgresql 18.2
published: '2026-02-12'
updated: '2026-06-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-2005'
references:
  - url: 'https://www.postgresql.org/support/security/CVE-2026-2005/'
    label: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
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  - url: 'https://access.redhat.com/security/cve/CVE-2026-2005'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2439326'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: >-
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    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
tags:
  - nvd
  - exploit-available
epss: 0.01323
epssPercentile: 0.69213
ingestedAt: '2026-07-03T18:53:52.414Z'
exploits:
  github: 5
  githubRepos:
    - 'https://github.com/M3str3/CVE-2026-2005'
    - 'https://github.com/stvm8/CVE-2026-2005_lab'
    - 'https://github.com/dinosn/cve-2026-2005'
  checkedAt: '2026-09-21T15:28:21.901Z'
exploitAvailable: true
---

## Overview

Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database.  Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

## Affected

- `postgresql >= 14.0, < 14.21`
- `postgresql >= 15.0, < 15.16`
- `postgresql >= 16.0, < 16.12`
- `postgresql >= 17.0, < 17.8`
- `postgresql >= 18.0, < 18.2`

## Remediation

Upgrade past the affected range:

- `postgresql 18.2`