{"id":"CVE-2026-67427","aliases":["GHSA-hr7p-wg7r-hg9m","PYSEC-2026-3570"],"url":"https://o3.security/vulnerability/CVE-2026-67427","summary":"Flyto2 Core: ${env.VAR} interpolation reads any env secret despite env.get being denylisted","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.","published":"2026-07-29T18:45:47.908Z","modified":"2026-08-12T03:51:45.884308836Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"},"epss":{"score":0.00359,"percentile":0.29238,"asOf":"2026-09-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"flyto-core","fixedVersion":"2.26.7"}],"fix":{"url":"https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc","label":"flytohub/flyto-core@d5f89d7"},"references":[{"type":"WEB","url":"https://github.com/flytohub/flyto-core/releases/tag/v2.26.6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67427.json"},{"type":"ADVISORY","url":"https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67427"},{"type":"FIX","url":"https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:45.884308836Z"}}