CVE-2026-67427

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

HIGH
8.6
CVSS Score
Published: July 29, 2026 at 06:45 PM UTC
Updated: October 24, 2026 at 01:10 PM UTC
1 product affected across 1 vendorFlyto Core

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Severity
HIGH8.6
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.26.6
Affected range stops below 2.26.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-522CWE-668CWE-693

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