Server-side Request Forgery (SSRF) Affecting flyto-core package, versions [,2.26.3)


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-PYTHON-FLYTOCORE-17824487
  • published6 Jul 2026
  • disclosed6 Jul 2026
  • creditUnknown

Introduced: 6 Jul 2026

CVE-2026-55787  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade flyto-core to version 2.26.3 or higher.

Overview

flyto-core is an A workflow engine with 412 built-in modules. Trace every step. Replay from any point.

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the validate_url_ssrf process. An attacker can access internal or sensitive resources by submitting specially crafted URLs containing IPv6 transition addresses that bypass IP range checks, resulting in the exfiltration of data from internal services.

CVSS Base Scores

version 4.0
version 3.1