CVE-2026-67427

HIGH8.6

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

Published Jul 29, 2026

Modified 2 weeks ago

Details

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.

References

WEB

https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc

WEB

https://github.com/flytohub/flyto-core/releases/tag/v2.26.6

WEB

https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-67427

CVSS Analysis

CVSS v3.1

8.6