CVE-2026-67427
Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted
CVSS Score
8.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-522 CWE-668 CWE-693 |
| Vendor | flytohub |
| Product | flyto-core |
| Published | Jul 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
flytohub / flyto-core
< 2.26.6