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.
- CVSS 3.1
- 10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H - EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-22, CWE-73
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2956-977x-2w3r | PyPI | flyto-core | <2.26.7 | 2.26.7 |
| PYSEC-2026-3568 | PyPI | flyto-core | <2.26.7 | 2.26.7 |
References
- 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