Is CVE-2026-4215 actively exploited?

No active exploitation of CVE-2026-4215 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4215 be exploited remotely?

Yes. CVE-2026-4215 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4215?

CVE-2026-4215 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-4215

CWE-918Published: March 16, 2026· Updated: Mar 16, 2026

6.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.5th

Official Description

A security flaw has been discovered in FlowCI flow-core-x up to 1.23.01. The impacted element is the function Save of the file core/src/main/java/com/flowci/core/config/service/ConfigServiceImpl.java of the component SMTP Host Handler. The manipulation results in server-side request forgery. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2026-4215 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.