What’s Vulnerable › Vulnerabilities
CVE-2026-33467: Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass
- Severity: medium (CVSS 5.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-28 · updated 2026-07-24
- Weakness: CWE-347
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.
Affected products
- Elastic Package Registry: before 1.38.0 — fixed in 1.38.0
How to fix
Upgrade to a fixed version: Elastic Package Registry 1.38.0. Check the vendor advisory for mitigations.
References
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