CVE-2026-33467— Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass
Quick assessment
Affected
Elastic Elastic Package Registry
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Elastic Package Registry是Elastic公司的一个集成组件与数据集分发服务。 Elastic Package Registry存在数据伪造问题漏洞，该漏洞源于加密签名验证不当，可能导致攻击者拦截网络流量或影响自托管注册表提供的内容，替换篡改的包而不触发完整性检查失败。
Possible ATT&CK Techniques 1 AI
T1557.002 · ARP Cache PoisoningAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Elastic | Elastic Package Registry | 0.1.0≤ 1.37.0 |
affected |
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I. Basic Information for CVE-2026-33467
Vulnerability Information
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Vulnerability Title
Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic Package Registry 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Package Registry是Elastic公司的一个集成组件与数据集分发服务。 Elastic Package Registry存在数据伪造问题漏洞，该漏洞源于加密签名验证不当，可能导致攻击者拦截网络流量或影响自托管注册表提供的内容，替换篡改的包而不触发完整性检查失败。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Elastic | Elastic Package Registry | 0.1.0 ~ 1.37.0 | - |
|
II. Public POCs for CVE-2026-33467
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-33467 (1)
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V. Comments for CVE-2026-33467
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