Vulnerability · Published Oct 10, 2026 · Assigned by VulnCheck

CVE-2026-108598Floci 1.1.0 before 2.2.0 RCE via API Gateway VTL Mapping Templates

Critical 9.8

In plain English

A critical-severity code injection in floci from floci-io. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.9%top 39.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Public PoC

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
floci-io	floci	1.1.0 – before 2.2.0

Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-3p4c-wp7w-mgjx) vendor-advisory
https://github.com/ghostx-86/exploitarium/tree/main/floci-apigateway-vtl-rce-poc exploit
https://github.com/floci-io/floci/commit/144b90e6fa861a5ac882e99a090d503da01945c4 patch
floci 2.2.0 Release Notes release-notes
https://github.com/floci-io/floci/blob/560b3e4aae61cea3ac7d4d51843bdffd0e3085fd/src/main/java/io/github/hectorvent/floci/services/apigateway/VtlTemplateEngine.java#L74-L114 technical-description
https://github.com/floci-io/floci product
VulnCheck Advisory: Floci 1.1.0 before 2.2.0 RCE via API Gateway VTL Mapping Templates third-party-advisory