# CVE-2026-67427

## Summary

- **CVE ID:** CVE-2026-67427
- **Severity:** HIGH
- **CVSS Score:** 8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N)
- **CWE:** CWE-522, CWE-668, CWE-693
- **Published:** Jul 29, 2026
- **Last Modified:** Jul 30, 2026

## Description

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, the workflow engine variable resolver expands ${env.VAR} for any host environment variable without an allowlist or capability policy check, allowing a workflow parameter to bypass the default capability policy denylist for env.get and env.load_dotenv and exfiltrate secrets through allowed modules. This issue is fixed in version 2.26.6.

## Affected Products

- flytohub — flyto-core (< 2.26.6)

## References

- [CNA](https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m)
- [CNA](https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc)
- [CNA](https://github.com/flytohub/flyto-core/releases/tag/v2.26.6)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._