CVE-2026-67424 json
Flyto2 Core: Guarded HTTP modules follow redirects into internal space without per-hop SSRF revalidation
published 2026-07-29 3 mo ago modified 2026-10-24 15 d ago also GHSA-c9hr-64h3-gxpc , PYSEC-2026-3569 , EUVD-2026-50465
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi flyto-core 2.26.7
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/flytohub/flyto-core/security/advisories/GHSA-c9hr-64h3-gxpc referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| OSV | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| GitHub | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | flyto-core | <2.26.7 |
2.26.7 |
Affected products
- flytohub flyto-core
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9
web
-
github.com
/flytohub/flyto-core/security/advisories/GHSA-c9hr-64h3-gxpc
exploit, web
-
github.com
/flytohub/flyto-core/releases/tag/v2.26.7
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-67424
advisory
-
github.com
/flytohub/flyto-core
package
-
pypi.org
/project/flyto-core
package
-
github.com
/advisories/GHSA-c9hr-64h3-gxpc
advisory
Sources
- CVE List CVE-2026-67424
- GitHub Advisory GHSA-c9hr-64h3-gxpc
- NVD CVE-2026-67424
- OSV PYSEC-2026-3569
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.