CVE-2026-33467
Medium
Description
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.
SeverityMedium
CVSS5.9
Exploit probability—
ProductElastic Package Registry
PublishedApr 28, 2026
First seenApr 28, 2026
Weakness typeCWE-347CWE-347
How to fix
Update
- elastic elastic_package_registry1.38.0 or later
- github.com/elastic/package-registry1.38.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic elastic_package_registry | v < 1.38.0 | 1.38.0 |
| github.com/elastic/package-registryGo | v < 1.38.0 | 1.38.0 |
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