CVE-2026-73530 (GCVE-0-2026-73530)
Vulnerability from cvelistv5 – Published: 2026-08-13 19:01 – Updated: 2026-08-14 12:46 X_Open Source
VLAI
EPSS
VEX
Title
Flyto2 Core < 2.28.0 SSRF Guard Bypass via is_private_ip()
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 19:31 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/flytohub/flyto-core/security/a… | vendor-advisory |
| https://github.com/flytohub/flyto-core/releases/t… | release-notes |
| https://www.vulncheck.com/advisories/flyto2-core-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| flytohub | flyto-core |
Affected:
0 , < 2.28.0
(semver)
|
guessed |
Date Public
2026-08-12 00:00
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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