CVE-2026-34762— Ella Core Has Audit Log Falsification via Path/Body IMSI Mismatch in UpdateSubscriber
Quick assessment
Affected
ellanetworks core
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.
Ella Core是Ella Networks开源的一个用于私有网络的5G核心网解决方案。 Ella Core 1.8.0之前版本存在输入验证错误漏洞，该漏洞源于PUT /api/v1/subscriber/{imsi} API未验证URL路径与JSON请求体中的IMSI标识符是否匹配，可能导致经过身份验证的NetworkManager修改任意用户的策略。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-34762
Vulnerability Information
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Vulnerability Title
Ella Core Has Audit Log Falsification via Path/Body IMSI Mismatch in UpdateSubscriber
Source: CVE Program / CVE List V5
Vulnerability Description
Ella Core is a 5G core designed for private networks. Prior to version 1.8.0, the PUT /api/v1/subscriber/{imsi} API accepts an IMSI identifier from both the URL path and the JSON request body but never verifies they match. This allows an authenticated NetworkManager to modify any subscriber's policy while the audit trail records a fabricated or unrelated subscriber IMSI. This issue has been patched in version 1.8.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Ella Core 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ella Core是Ella Networks开源的一个用于私有网络的5G核心网解决方案。 Ella Core 1.8.0之前版本存在输入验证错误漏洞，该漏洞源于PUT /api/v1/subscriber/{imsi} API未验证URL路径与JSON请求体中的IMSI标识符是否匹配，可能导致经过身份验证的NetworkManager修改任意用户的策略。
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 |
|---|---|---|---|---|
| ellanetworks | core | < 1.8.0 | - |
|
II. Public POCs for CVE-2026-34762
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-34762 (1)
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V. Comments for CVE-2026-34762
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