CVE-2026-67429
Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)
CVSS Score
10.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 CWE-73 |
| Vendor | flytohub |
| Product | flyto-core |
| Published | Jul 29, 2026 |
| Last Updated | Jul 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
flytohub / flyto-core
< 2.26.6