CVE-2026-116731: tildearrow furnace

Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import

CVSS 6.9 MediumEPSS 0.0014 · 3rd percentile

Published by the CVE Program (CNA: VulnCheck) at 26 Oct 2026, 21:52 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
tildearrow	furnace pkg:github/tildearrow/furnace	affected 0.6.8.3 and earlier custom Other versions: unaffected

Identifiers

CVE-2026-116731

CNA

VulnCheck

Weakness (CWE)

CWE-129

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
6.9	Medium	4.0	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
6.1	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0014, the 3rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

26 Oct 2026, 21:52 UTC Confirmed by the CVE List
26 Oct 2026, 22:16 UTC Confirmed by NVD

Sources

References from the CNA

github.com/tildearrow/furnace/issues/2966 issue-tracking
github.com/tildearrow/furnace product
github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693 patch
github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605 technical-description
hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob third-party-advisory
www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import third-party-advisory

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.