CVE-2026-67426
Flyto2 Core: Unauthenticated flyto-verification /run: callback_url SSRF and internal runner-secret exfiltration
CVSS Score
9.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 CWE-522 CWE-918 |
| Vendor | flytohub |
| Product | flyto-core |
| Published | Jul 29, 2026 |
| Last Updated | Jul 29, 2026 |
Stay Ahead of the Next One
Get instant alerts for flytohub flyto-core
Be the first to know when new critical vulnerabilities affecting flytohub flyto-core are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
flytohub / flyto-core
< 2.26.7