CVE-2026-33467: Elastic Package Registry

Medium severity, CVSS 5.9. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Verification of Cryptographic Signature (CWE-347) in Elastic Package Registry could allow an attacker positioned to intercept network traffic, or to otherwise influence the contents served to a self-hosted registry, to substitute a tampered package without the integrity check failing closed.

Affected products

• Elastic Elastic Package Registry: before 1.38.0 (fixed in 1.38.0)

Published 2026-04-28. Last modified 2026-07-24.