CVE-2026-67427

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

Published Jul 29, 2026 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-hr7p-wg7r-hg9m Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Flytohub
Flytohub flyto-core
Vendors & Products Flytohub
Flytohub flyto-core
Type Values Removed Values Added
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.
Title Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted
Weaknesses CWE-522
CWE-668
CWE-693
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 30, 2026, 3:19 PM
Reserved
Jul 29, 2026, 3:02 PM
Status
Deferred
Published
Jul 29, 2026, 7:16 PM
Modified
Oct 24, 2026, 1:10 PM