CVE-2026-108598: floci-io floci

Floci 1.1.0 before 2.2.0 RCE via API Gateway VTL Mapping Templates

CVSS 9.3 CriticalCriticalEPSS 0.0093 · 60th percentile

Critical, because:

CVSS score 9.3: 9.0 or more.

Published by the CVE Program (CNA: VulnCheck) at 10 Oct 2026, 18:58 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
floci-io	floci pkg:github/floci-io/floci	affected 1.1.0 to before 2.2.0 semver Other versions: unaffected

Identifiers

CVE-2026-108598

CNA

VulnCheck

Weakness (CWE)

CWE-94

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.3	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0093, the 60th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 10 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/floci-io/floci/security/advisories/GHSA-3p4c-wp7w-mgjx vendor-advisory
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/main/java/io/github/hectorvent/floci/services/apigateway/VtlTemplateEngine.java#L74-L114 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-mapping-templates third-party-advisory
github.com/ghostx-86/exploitarium/tree/main/floci-apigateway-vtl-rce-poc exploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.