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Jwt Attack CVE-2026-33467

| EUVD-2026-26140 MEDIUM
Improper Verification of Cryptographic Signature (CWE-347)
2026-04-28 security@elastic.co
5.9
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

2
EUVD ID Assigned
Apr 28, 2026 - 22:22 euvd
EUVD-2026-26140
CVE Published
Apr 28, 2026 - 22:16 nvd
MEDIUM 5.9

DescriptionNVD

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.

Analysis

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.

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CVE-2026-33467 vulnerability details – vuln.today

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