CVE-2026-67429

Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)

Published Jul 29, 2026 CVSS 3.1 · 10 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-2956-977x-2w3r Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Flytohub
Flytohub flyto-core
Vendors & Products Flytohub
Flytohub flyto-core
Type Values Removed Values Added
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.
Title Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)
Weaknesses CWE-22
CWE-73
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 29, 2026, 7:04 PM
Reserved
Jul 29, 2026, 3:07 PM
Status
Deferred
Published
Jul 29, 2026, 7:16 PM
Modified
Oct 24, 2026, 1:10 PM