{"id":"CVE-2026-73530","aliases":["GHSA-gc4h-hj7x-gp5p"],"url":"https://o3.security/vulnerability/CVE-2026-73530","summary":"Flyto2 Core < 2.28.0 SSRF Guard Bypass via is_private_ip()","details":"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.","published":"2026-08-13T19:01:46.150Z","modified":"2026-09-11T03:30:51.469517899Z","cvss":null,"epss":{"score":0.00312,"percentile":0.23493,"asOf":"2026-08-27"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73530.json"},{"type":"ADVISORY","url":"https://github.com/flytohub/flyto-core/releases/tag/v2.28.0"},{"type":"ADVISORY","url":"https://github.com/flytohub/flyto-core/security/advisories/GHSA-gc4h-hj7x-gp5p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73530"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/flyto2-core-ssrf-guard-bypass-via-is-private-ip"},{"type":"PACKAGE","url":"https://github.com/flytohub/flyto-core"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T03:30:51.469517899Z"}}