Skip to main content
Back to Editorial
Advisory AnalysisHIGH

Apache Solr Admin Rights Vulnerability — Update Required

High-risk vulnerability in Apache Solr

blackhat.ie Intelligence Desk
3/6/2026 at 16:31:10
174 words
0 sources

Executive Summary

A high-risk vulnerability in Apache Solr allows remote attackers to gain admin privileges. Immediate updates are recommended to secure systems.

What Happened

CERT-Bund has issued an advisory regarding a vulnerability in Apache Solr that allows remote, anonymous attackers to gain administrator privileges. This could lead to unauthorized access to sensitive data. Users are advised to update their Apache Solr installations to the latest version to mitigate this risk.

Operational and Compliance Impact

For EU organisations, this vulnerability poses a significant operational risk, particularly for those relying on Apache Solr for data indexing and search functionalities. The potential for unauthorized access to sensitive data could lead to data breaches, impacting compliance with data protection regulations under NIS2 and DORA. Organisations must assess their exposure and implement the necessary updates to maintain operational integrity and compliance.

NIS2/DORA Obligations Triggered

NIS2-Art23

Organisations must ensure the security of network and information systems by implementing appropriate technical and organisational measures. This includes updating vulnerable systems like Apache Solr to prevent unauthorized access.

Affected Sectors

Recommended Immediate Actions

1

Update Apache Solr to the latest version to mitigate the vulnerability.

immediate
Tags
advisoryncscvulnerability

MITRE ATT&CK Techniques

Affected Sectors

financial-servicescritical-infrastructure