Vulnerability · Published Jul 29, 2026 · Assigned by GitHub_M
CVE-2026-67424Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation
High 8.5
In plain English
A high-severity server-side request forgery in flyto-core from flytohub. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the HTTP modules http.get, http.request, and http.batch in src/core/modules/atomic/http/get.py, src/core/modules/atomic/http/request.py, and src/core/modules/atomic/http/batch.py validate only the initial URL, then follow redirects with allow_redirects=True and without per-hop Location revalidation, allowing a public URL to redirect into internal address space and return the internal response body. This issue is fixed in version 2.26.7.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | flyto-core | 2.26.7 | GHSA-c9hr-64h3-gxpc |
| PyPI | flyto-core | 2.26.7 | PYSEC-2026-3569 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| flytohub | flyto-core | < 2.26.7 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N