flytohub flyto-core up to 2.26.6 HTTP Request requests.py validate_url_with_env_config base_url server-side request forgery

Summaryinfo

A vulnerability classified as critical was found in flytohub flyto-core up to 2.26.6. This vulnerability affects the function validate_url_with_env_config of the file src/core/modules/third_party/developer/http/requests.py of the component HTTP Request Handler. Executing a manipulation of the argument base_url can lead to server-side request forgery. The identification of this vulnerability is CVE-2026-67428. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in flytohub flyto-core up to 2.26.6. It has been declared as critical. This vulnerability affects the function validate_url_with_env_config of the file src/core/modules/third_party/developer/http/requests.py of the component HTTP Request Handler. The manipulation of the argument base_url with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, HTTP-emitting modules including src/core/modules/third_party/developer/http/requests.py, core.api.http_get, core.api.http_post, graphql.query, graphql.mutation, monitor.http_check, communication.slack_send, notification.discord.send_message, notification.slack.send_message, notification.teams.send_message, ai.vision_analyze, verify.visual_diff, browser.proxy_rotate, and the agent and llm inline base_url branch fetch caller-controlled URLs without validate_url_with_env_config, allowing SSRF to internal or metadata endpoints. This issue is fixed in version 2.26.7.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-67428 since 07/29/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

Upgrading to version 2.26.7 eliminates this vulnerability.

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Productinfo

Vendor

• flytohub

Name

• flyto-core

Version

• 2.26.0
• 2.26.1
• 2.26.2
• 2.26.3
• 2.26.4
• 2.26.5
• 2.26.6

Website

• Product: https://github.com/flytohub/flyto-core/

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