High 8.6Published Jul 29, 2026

CVE-2026-67427Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted

Updated under an hour ago (Oct 27, 2026, 11:50 AM ET)

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It affects flytohub flyto-core. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-522, CWE-668, CWE-693
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

flytohub flyto-core flytohub:flyto_core (from the name)	before 2.26.6	CNA record

References

References

https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m	x-refsource-confirm
https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc	x-refsource-misc
https://github.com/flytohub/flyto-core/releases/tag/v2.26.6	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.