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Vulnerability record · CVE-2026-67429 · published 29 July 2026

CVE-2026-67429: Path traversal vulnerability

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.

10.0 CVSS 3.1 Critical EPSS 0.77% · top 46.2% CWE-22 · Path traversalCWE-73 · CWE-73 Deferred
10.0CVSS 3.1 base score
0.77%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
30 Jul 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-67429), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.