CVE-2026-67429

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.

Score

CVSS 3.1 10.0 Critical

Status

Deferred - security-advisories@github.com

Published

2026-07-29

Last modified

2026-10-24

Weaknesses

CWE-22, CWE-73

Affected products

• Flyto-core (Flytohub)

References

• https://github.com/flytohub/flyto-core/security/advisories/GHSA-2956-977x-2w3r
• https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc
• https://github.com/flytohub/flyto-core/releases/tag/v2.26.6