{"cve":"CVE-2026-67427","nvd":{"published":"2026-07-29T19:16:51.913","modified":"2026-10-24T13:10:00.147","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6},"cwes":["CWE-522","CWE-668","CWE-693"],"references":["https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc","https://github.com/flytohub/flyto-core/releases/tag/v2.26.6","https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m","https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2026-67427","score":0.00446,"percentile":0.3854,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-hr7p-wg7r-hg9m","url":"https://osv.dev/vulnerability/GHSA-hr7p-wg7r-hg9m","summary":"Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted","modified":"2026-08-04T14:41:00.256815584Z","packages":[{"ecosystem":"PyPI","name":"flyto-core","purl":"pkg:pypi/flyto-core","ranges":["<2.26.7"],"fixed":["2.26.7"]}]},{"id":"PYSEC-2026-3570","url":"https://osv.dev/vulnerability/PYSEC-2026-3570","summary":"Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted","modified":"2026-08-04T14:30:16.367585109Z","packages":[{"ecosystem":"PyPI","name":"flyto-core","purl":"pkg:pypi/flyto-core","ranges":["<2.26.7"],"fixed":["2.26.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}