Improper input validation in Ellanetworks Core
CVE-2026-34762
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Ellanetworks Core — versions < 1.8.0
- Ellanetworks Ella Core
Weakness classification (CWE)
References
- github.com/ellanetworks/core/security/advisories/GHSA-xw45-cc32-442f (Vendor Advisory)
- github.com/ellanetworks/core/releases/tag/v1.8.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-34762?
- CVE-2026-34762 is a low-severity vulnerability in Ellanetworks Core, classified under Improper Input Validation. CVSS score: 2.7/10. Published 2026-04-02.
- How severe is CVE-2026-34762?
- Low severity. CVSS v3 base score is 2.7 out of 10.