Apache Druid up to 31.0.1/32.0.0 server-side request forgery

Summaryinfo

A vulnerability was found in Apache Druid up to 31.0.1/32.0.0. It has been rated as critical. This impacts an unknown function. Performing a manipulation results in server-side request forgery. This vulnerability is identified as CVE-2025-27888. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apache Druid up to 31.0.1/32.0.0. It has been classified as critical. This affects an unknown function. 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:

Severity: medium (5.8) / important Server-Side Request Forgery (SSRF), Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache Druid. This issue affects all previous Druid versions. When using the Druid management proxy, a request that has a specially crafted URL could be used to redirect the request to an arbitrary server instead. This has the potential for XSS or XSRF. The user is required to be authenticated for this exploit. The management proxy is enabled in Druid's out-of-box configuration. It may be disabled to mitigate this vulnerability. If the management proxy is disabled, some web console features will not work properly, but core functionality is unaffected. Users are recommended to upgrade to Druid 31.0.2 or Druid 32.0.1, which fixes the issue.

It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2025-27888 since 03/10/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2025).

Upgrading to version 31.0.2 or 32.0.1 eliminates this vulnerability.

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Productinfo

Vendor

• Apache

Name

• Druid

Version

• 31.0.0
• 31.0.1
• 32.0

License

• open-source

Website

• Vendor: https://www.apache.org/

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