CVE-2026-73530

Flyto2 Core before 2.28.0 contains a server-side request forgery guard bypass vulnerability that allows attackers to reach internal services by supplying URLs using the unblocked IPv6 address `::` which the kernel routes to loopback identically to `0.0.0.0`. Attackers can submit requests or trigger 302 redirects to ` to bypass the private IP range and blocked hostname checks in `is_private_ip()`, reaching services bound to IPv6 loopback across the `http.get`, `http.request`, and `http.batch` modules.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/flytohub/flyto-core/releases/tag/v2.28.0
https://github.com/flytohub/flyto-core/security/advisories/GHSA-gc4h-hj7x-gp5p
https://www.vulncheck.com/advisories/flyto2-core-ssrf-guard-bypass-via-is-private-ip
https://github.com/flytohub/flyto-core/security/advisories/GHSA-gc4h-hj7x-gp5p

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 20:17

Updated : 2026-09-09 20:35

NVD link : CVE-2026-73530

Mitre link : CVE-2026-73530

CVE.ORG link : CVE-2026-73530

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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