9.8
CRITICAL CVSS 3.1
CVE-2026-108598
Floci 1.1.0 before 2.2.0 RCE via API Gateway VTL Mapping Templates
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.

INFO

Published Date :

Oct. 10, 2026, 7:16 p.m.

Last Modified :

Oct. 10, 2026, 7:16 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-108598 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 CRITICAL MITRE-CVE
CVSS 3.1 CRITICAL [email protected]
CVSS 4.0 CRITICAL 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 CRITICAL [email protected]
Solution
Update Floci to version 2.2.0 or later to fix command execution via Velocity mapping templates.
  • Update Floci to version 2.2.0 or later.
  • Restrict Velocity mapping template usage.
  • Disable REST API MOCK integration if not needed.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108598 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108598 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-108598 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-108598 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 10, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-94
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/108xxx/CVE-2026-108598.json">CVE-2026-108598</a>
    Added Reference https://github.com/floci-io/floci
    Added Reference https://github.com/floci-io/floci/blob/560b3e4aae61cea3ac7d4d51843bdffd0e3085fd/src/main/java/io/github/hectorvent/floci/services/apigateway/VtlTemplateEngine.java#L74-L114
    Added Reference https://github.com/floci-io/floci/commit/144b90e6fa861a5ac882e99a090d503da01945c4
    Added Reference https://github.com/floci-io/floci/releases/tag/2.2.0
    Added Reference https://github.com/floci-io/floci/security/advisories/GHSA-3p4c-wp7w-mgjx
    Added Reference https://github.com/ghostx-86/exploitarium/tree/main/floci-apigateway-vtl-rce-poc
    Added Reference https://www.vulncheck.com/advisories/floci-1.1.0-before-2.2.0-rce-via-api-gateway-vtl-mapping-templates
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.