CVE-2026-67427 Details
Description
Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, the workflow engine variable resolver expands ${env.VAR} for any host environment variable without an allowlist or capability policy check, allowing a workflow parameter to bypass the default capability policy denylist for env.get and env.load_dotenv and exfiltrate secrets through allowed modules. This issue is fixed in version 2.26.6.
A vulnerability in Flyto2 Core's workflow engine prior to version 2.26.6 allows environment variable interpolation to bypass the default capability policy denylist. This issue enables the unauthorized reading of sensitive host environment variables, such as API keys and tokens, which can be exfiltrated through outbound requests via allowed modules. The vulnerability arises because the engine's variable resolver expands '${env.VAR}' without an allowlist or policy check, directly contradicting the intended protection that the denylist provides.
Users are advised to upgrade to Flyto2 Core version 2.26.6, which addresses this vulnerability by applying the same policy to '${env.*}' interpolations as is applied to the 'env.get' module, thereby preventing unauthorized access to environment variables.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 29, 2026CISA-ADP
Assessed Jul 30, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc | [email protected] | Source CodeVendor |
| https://github.com/flytohub/flyto-core/releases/tag/v2.26.6 | [email protected] | Release NotesVendor |
| https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-522 | Insufficiently Protected Credentials | [email protected] |
| CWE-668 | Exposure of Resource to Wrong Sphere | [email protected] |
| CWE-693 | Protection Mechanism Failure | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Flyto2 Core | < 2.26.6 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 30, 2026 | CVE Modified | CISA-ADP |
| Jul 29, 2026 | New CVE Received | [email protected] |