CVE-2026-67426
Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the standalone flyto-verification service in src/core/verification_service.py exposes unauthenticated POST /run on 0.0.0.0:8344 and uses client-supplied callback_url for an outbound POST with X-Internal-Key: $FLYTO_RUNNER_SECRET while bypassing target_allowed, allowing unauthenticated SSRF and runner secret exfiltration. This issue is fixed in version 2.26.7.
- CVSS 3.1
- 9.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N - EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-306, CWE-522, CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-jx74-cqjv-2c67 | PyPI | flyto-core | >=2.26.6 <2.26.7 | 2.26.7 |
| PYSEC-2026-3571 | PyPI | flyto-core | <2.26.7 | 2.26.7 |
References
- https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9
- https://github.com/flytohub/flyto-core/releases/tag/v2.26.7
- https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67
- https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67