CVE-2026-2005 is a critical heap buffer overflow vulnerability in PostgreSQL's pgcrypto module, affecting versions prior to 18.2, 17.8, 16.12, 15.16, and 14.21. This flaw allows an authenticated ciphertext provider to execute arbitrary code with the privileges of the operating system user running the database. Rated with a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered substantial community discussion and media coverage, indicating a high level of awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 14.0, < 14.21CPE matchmatch criteria | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* | ||
>= 15.0, < 15.16CPE matchmatch criteria | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* | ||
>= 16.0, < 16.12CPE matchmatch criteria | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* | ||
>= 17.0, < 17.8CPE matchmatch criteria | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* | ||
>= 18.0, < 18.2CPE matchmatch criteria | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
PostgreSQL vulnerabilities
Mar 4, 2026postgresql: PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
Feb 12, 2026PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
Jan 1, 2026PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code