CVE-2026-33467

Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass

Published Apr 28, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-r727-5pf6-47r2 Elastic Package Registry has Improper Verification of Cryptographic Signature
History
Type Values Removed Values Added
CPEs cpe:2.3:a:elastic:elastic_package_registry:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Elastic
Elastic elastic Package Registry
Vendors & Products Elastic
Elastic elastic Package Registry
Type Values Removed Values Added
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.
Title Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
elastic
Published
Updated
Apr 29, 2026, 3:10 PM
Reserved
Mar 20, 2026, 10:53 AM
Status
Analyzed
Published
Apr 28, 2026, 10:16 PM
Modified
Jul 24, 2026, 11:10 PM