CVE-2026-67427

Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted

State: Published
Severity: 8.6 High
Published: Jul 29, 2026
Updated: Jul 30, 2026
Reserved: Jul 29, 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.

Scores

CVSS	Score	Vector	Source
3.1	8.6 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-522 Insufficiently Protected Credentials
CWE-668 Exposure of Resource to Wrong Sphere
CWE-693 Protection Mechanism Failure

Affected Products

Product	Versions
flyto-coreflytohub	< 2.26.6Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.