What’s Vulnerable › Vulnerabilities

CVE-2026-34762: Ella Core Has Audit Log Falsification via Path/Body IMSI Mismatch in UpdateSubscriber

• Severity: low (CVSS 2.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-02 · updated 2026-07-24
• Weakness: CWE-20

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.

Affected products

• ellanetworks core: before 1.8.0 — fixed in 1.8.0

How to fix

Upgrade to a fixed version: ellanetworks core 1.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/ellanetworks/core/releases/tag/v1.8.0
• https://github.com/ellanetworks/core/security/advisories/GHSA-xw45-cc32-442f

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