dataelement Bisheng up to 2.6.0-fix2 Callback Endpoint callback server-side request forgery

Summaryinfo

A vulnerability was found in dataelement Bisheng up to 2.6.0-fix2. It has been rated as critical. This affects an unknown function of the file /api/v1/workflow/report/callback of the component Callback Endpoint. Performing a manipulation results in server-side request forgery. This vulnerability is identified as CVE-2026-82285. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in dataelement Bisheng up to 2.6.0-fix2. This affects an unknown function of the file /api/v1/workflow/report/callback of the component Callback 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:

bisheng through 2.6.0-fix2 contains a server-side request forgery vulnerability in the POST /api/v1/workflow/report/callback endpoint that lacks authentication and applies no URL scheme restrictions or host filtering. Unauthenticated attackers can supply arbitrary URLs to enumerate internal network services and cloud metadata endpoints, then retrieve captured responses from object storage using caller-supplied object names.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-82285 since 08/28/2026. 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 are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/28/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• dataelement

Name

• Bisheng

Version

• 2.6.0-fix2

Website

• Product: https://github.com/dataelement/bisheng/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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