RCE in Floci-Io Floci
CVE-2026-108598
Floci 1.1.0 before 2.2.0 contains a code injection vulnerability in VtlTemplateEngine that allows unauthenticated attackers to execute commands via unrestricted Velocity mapping templates. Attackers can create a REST API with a MOCK integration whose template uses $util reflection to reach Runtime or ProcessBuilder, executing OS commands in the Floci JVM.
Vulnerability class: RCE (Remote Code Execution)
Published .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/floci-io/floci/security/advisories/GHSA-3p4c-wp7w-mgjx (vendor-advisory)
- github.com/ghostx-86/exploitarium/tree/main/floci-apigateway-vtl-rce-poc (exploit)
- github.com/floci-io/floci/commit/144b90e6fa861a5ac882e99a090d503da01945c4 (patch)
- github.com/floci-io/floci/releases/tag/2.2.0 (release-notes)
- github.com/floci-io/floci/blob/560b3e4aae61cea3ac7d4d51843bdffd0e3085fd/src/mai… (technical-description)
- github.com/floci-io/floci (product)
- www.vulncheck.com/advisories/floci-1.1.0-before-2.2.0-rce-via-api-gateway-vtl-m… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108598?
- CVE-2026-108598 is a critical-severity vulnerability in Floci-Io Floci, classified under Code Injection. CVSS score: 9.8/10. Published 2026-10-10.
- How severe is CVE-2026-108598?
- Critical severity. CVSS v3 base score is 9.8 out of 10.