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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd1…
security-advisories@github.com
https://github.com/flytohub/flyto-core/releases/tag/v2.26.6
security-advisories@github.com
https://github.com/flytohub/flyto-core/security/advisories/GHSA-2956-977x-2w3r
security-advisories@github.com