Hmbown CodeWhale up to 0.8.21 Cloud Metadata Endpoint is_restricted_ip server-side request forgery

Summaryinfo

A vulnerability, which was classified as critical, has been found in Hmbown CodeWhale up to 0.8.21. This issue affects the function is_restricted_ip of the component Cloud Metadata Endpoint. Performing a manipulation results in server-side request forgery. This vulnerability was named CVE-2026-45310. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Hmbown CodeWhale up to 0.8.21. This affects the function is_restricted_ip of the component Cloud Metadata Endpoint. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

CodeWhale is a DeepSeek + MiMo coding agent in terminal. Prior to 0.8.22, the fetch_url tool validates the initial URL's resolved IP address against a restricted-IP blocklist (is_restricted_ip()) to prevent SSRF attacks against internal services (cloud metadata endpoints, localhost, private networks). However, the HTTP client (reqwest) is configured to automatically follow up to 5 redirects (reqwest::redirect::Policy::limited(5)) without re-validating the redirect target against the same SSRF protections. This vulnerability is fixed in 0.8.22.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-45310 since 05/11/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 0.8.22 eliminates this vulnerability.

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Productinfo

Vendor

• Hmbown

Name

• CodeWhale

Version

• 0.8.0
• 0.8.1
• 0.8.2
• 0.8.3
• 0.8.4
• 0.8.5
• 0.8.6
• 0.8.7
• 0.8.8
• 0.8.9
• 0.8.10
• 0.8.11
• 0.8.12
• 0.8.13
• 0.8.14
• 0.8.15
• 0.8.16
• 0.8.17
• 0.8.18
• 0.8.19
• 0.8.20
• 0.8.21

Website

• Product: https://github.com/Hmbown/CodeWhale/

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