Buffer Overflow The advisory has been revoked - it doesn't affect any version of package postgresql18 (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL10-POSTGRESQL18-15563806
- published14 Mar 2026
- disclosed12 Feb 2026
Introduced: 12 Feb 2026
CVE-2026-2005 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream postgresql18 package and not the postgresql18 package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2439326
- https://access.redhat.com/security/cve/CVE-2026-2005
- https://access.redhat.com/errata/RHSA-2026:19009
- https://access.redhat.com/errata/RHSA-2026:19010
- https://access.redhat.com/errata/RHSA-2026:3887
- https://access.redhat.com/errata/RHSA-2026:4441
- https://access.redhat.com/errata/RHSA-2026:8756
- https://www.postgresql.org/support/security/CVE-2026-2005/
- https://github.com/var77/CVE-2026-2005