CVE-2026-2005

PostgreSQL pgcrypto heap buffer overflow executes arbitrary code

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

CVSS v3.1 CNA

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.37% chance of exploitation in the next 30 days, 72nd percentile

Published

2026-02-12

Updated

2026-07-15

Proof-of-concept exploits (3)

• var77/CVE-2026-200527★ · 2026-05-13
• dinosn/cve-2026-200518★ · 2026-05-05
• open-flaw/CVE-2026-20050★ · 2026-08-21

Security advisories

• https://www.postgresql.org/support/security/CVE-2026-2005

References

• CVE Record
• NVD entry

Related

• CVE-2019-13132
• CVE-2021-2109
• CVE-2022-22963
• CVE-2023-4966
• CVE-2024-20931
• CVE-2024-22369