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GHSA-2rgp-f66f-4499

CriticalCVSS 9.8 / 10
Published May 13, 2026·Last modified May 13, 2026
Affected Components(0)

No affected components available

Description

Summary

The Goobi viewer REST endpoint POST /api/v1/index/stream accepted an arbitrary Solr streaming expression from unauthenticated network clients and forwarded it to the backend Solr server without restriction. An attacker could read the complete Solr index and, in default Solr deployments, also modify or delete indexed records.

The API endpoint has now been removed.

Impact

  • Complete Solr index read without authentication. All documents indexed by the viewer including those protected by access conditions such as moving walls, licence requirements or IP restrictions - can be read in full.

  • Index data modification. update() streaming expressions overwrite indexed field values. An attacker can alter metadata, change ACCESSCONDITION values, or corrupt document structure.

  • Index data deletion. delete() streaming expressions permanently remove documents. A single expression can delete the entire collection, requiring a full re-index to recover.

Patches

The endpoint was removed in 326980f24c

Workarounds

Until an update can be deployed, the endpoint should be blocked by a reverse proxy or in the tomcat configuration.

For Apache httpd the following block can be used in the vhost configuration:

<LocationMatch ^.*api/v[12]/index/stream.*$>
    Require all denied
</LocationMatch>

Alternatively the following security constraint can be added in tomcat via the relevant web.xml:

<security-constraint>
      <web-resource-collection>
        <web-resource-name>blocked endpoint</web-resource-name>
        <url-pattern>/api/v1/index/stream</url-pattern>
        <url-pattern>/api/v1/index/stream/*</url-pattern>
      </web-resource-collection>
      <auth-constraint/>
</security-constraint>

References

Contact

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Risk Scores
Base Score
9.8

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
9.0

Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Critical severity
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