{"cve":"CVE-2026-67429","nvd":{"published":"2026-07-29T19:16:52.240","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, image.download and related file-writing modules use caller-controlled output_dir instead of validate_path_with_env_config and its FLYTO_SANDBOX_DIR confinement, allowing attacker-controlled response bytes to be written to arbitrary filesystem paths the process can access. 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:N/I:H/A:H","score":10.0},"cwes":["CWE-22","CWE-73"],"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-2956-977x-2w3r","https://github.com/flytohub/flyto-core/security/advisories/GHSA-2956-977x-2w3r"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2026-67429","score":0.00575,"percentile":0.47152,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-2956-977x-2w3r","url":"https://osv.dev/vulnerability/GHSA-2956-977x-2w3r","summary":"Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)","modified":"2026-08-04T14:40:56.807170949Z","packages":[{"ecosystem":"PyPI","name":"flyto-core","purl":"pkg:pypi/flyto-core","ranges":["<2.26.7"],"fixed":["2.26.7"]}]},{"id":"PYSEC-2026-3568","url":"https://osv.dev/vulnerability/PYSEC-2026-3568","summary":"Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)","modified":"2026-08-04T14:30:26.180084503Z","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."]}