📦 Solr

by Apache

🔍 What is Solr?

Description coming soon...

🛡️ Security Overview

Click on a severity to filter vulnerabilities

⚠️ Known Vulnerabilities

CVE-2024-45216

CRITICAL CVSS 9.8 Oct 16, 2024

This CVE describes an authentication bypass vulnerability in Apache Solr's PKIAuthenticationPlugin. Attackers can bypass authentication by appending a fake ending to Solr API URLs, allowing unauthoriz...

CVE-2021-44548

CRITICAL CVSS 9.8 Dec 23, 2021

This vulnerability in Apache Solr's DataImportHandler allows attackers to make SMB network calls from the Solr host to other systems by providing Windows UNC paths. This can lead to credential theft v...

CVE-2021-27905

CRITICAL CVSS 9.8 Apr 13, 2021

CVE-2021-27905 is a Server-Side Request Forgery (SSRF) vulnerability in Apache Solr's ReplicationHandler that allows attackers to make arbitrary HTTP requests from the Solr server. This can lead to in...

CVE-2021-29943

CRITICAL CVSS 9.1 Apr 13, 2021

This vulnerability in Apache Solr's ConfigurableInternodeAuthHadoopPlugin causes distributed requests to be forwarded using server credentials instead of client credentials, leading to incorrect autho...

CVE-2020-13957

CRITICAL CVSS 9.8 Oct 13, 2020

This vulnerability in Apache Solr allows attackers to bypass security controls and upload malicious ConfigSets via API without authentication. By combining UPLOAD and CREATE actions, attackers can ena...

CVE-2026-22022

HIGH CVSS 8.2 Jan 21, 2026

Apache Solr deployments using RuleBasedAuthorizationPlugin with specific configurations are vulnerable to unauthorized API access. Attackers can bypass authorization controls to read sensitive configu...

CVE-2026-22444

HIGH CVSS 7.1 Jan 21, 2026

This vulnerability in Apache Solr allows attackers to bypass path restrictions and read unauthorized files from the filesystem when creating new cores. On Windows systems, this can lead to NTLM hash d...

CVE-2023-50291

HIGH CVSS 7.5 Feb 9, 2024

Apache Solr leaks sensitive system properties like 'basicauth' and 'aws.secretKey' through the /admin/info/properties endpoint because the redaction logic only hid properties containing 'password'. Th...

CVE-2023-50298

HIGH CVSS 7.5 Feb 9, 2024

This vulnerability in Apache Solr allows attackers to steal ZooKeeper credentials and ACLs by tricking Solr into sending them to a malicious server. Attackers can exploit the Streaming Expressions fea...

CVE-2023-44487

HIGH CVSS 7.5 Oct 10, 2023

CVE-2023-44487 is an HTTP/2 protocol vulnerability that allows attackers to cause denial of service by rapidly resetting streams, consuming server resources. This affects any system using HTTP/2, incl...

CVE-2024-52012

MEDIUM CVSS 5.4 Jan 27, 2025

This CVE describes a relative path traversal vulnerability (zipslip) in Apache Solr's configset upload API on Windows systems. Attackers can upload malicious ZIP files containing relative paths to wri...