CVE-2025-26511: Cassandra-Lucene-Index allows bypass of Cassandra RBAC
First published: Thu Feb 13 2025(Updated: )
**Summary / Details** Systems running the Instaclustr fork of Stratio's Cassandra-Lucene-Index plugin versions 4.0-rc1-1.0.0 through 4.0.16-1.0.0 and 4.1.0-1.0.0 through 4.1.8-1.0.0, installed into Apache Cassandra version 4.x, are susceptible to a vulnerability which when successfully exploited could allow authenticated Cassandra users to remotely bypass RBAC to access data and and escalate their privileges. **Affected Versions** - Cassandra-Lucene-Index plugin versions 4.0-rc1-1.0.0 through 4.0.16-1.0.0 - versions 4.1.0-1.0.0 through 4.1.8-1.0.0 when installed into Apache Cassandra version 4.x. **Required Configuration for Exploit** These are the conditions required to enable exploit: 1. Cassandra 4.x 2. Vulnerable version of the Cassandra-Lucene-Index plugin configured for use 3. Data added to tables 4. Lucene index created 5. Cassandra flush has run **Mitigation/Prevention** Mitigation requires dropping all Lucene indexes and stopping use of the plugin. Exploit will be possible any time the required conditions are met. **Solution** Upgrade to a fixed version of the Cassandra-Lucene-Index plugin. Review users in Cassandra to validate all superuser privileges.
Credit: security-alert@netapp.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Cassandra | >=4.0-rc1-1.0.0<=4.0.16-1.0.0>=4.1.2-1.0.0<=4.1.8-1.0.0 | |
| Apache Cassandra | >=4.x | |
| maven/com.instaclustr:cassandra-lucene-index-plugin | >=4.1.0-1.0.0<4.1.8-1.0.1 | 4.1.8-1.0.1 |
| maven/com.instaclustr:cassandra-lucene-index-plugin | >=4.0-rc1-1.0.0<4.0.17-1.0.0 | 4.0.17-1.0.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/instaclustr/cassandra-lucene-index/security/advisories/GHSA-mrqp-q7vx-v2cx
- https://github.com/instaclustr/cassandra-lucene-index/commit/94380b165bd3e597d3e22e47f8cc674ec7c7bf7f
- https://nvd.nist.gov/vuln/detail/CVE-2025-26511
- https://github.com/advisories/GHSA-mrqp-q7vx-v2cx (Advisory)
Frequently Asked Questions
What is the severity of CVE-2025-26511?
The severity of CVE-2025-26511 is currently classified as high due to potential exploitation risks.
How do I fix CVE-2025-26511?
To fix CVE-2025-26511, upgrade the Instaclustr Cassandra-Lucene-Index plugin to a version beyond the affected releases.
What versions are affected by CVE-2025-26511?
CVE-2025-26511 affects Instaclustr Cassandra-Lucene-Index versions 4.0-rc1-1.0.0 to 4.0.16-1.0.0 and 4.1.2-1.0.0 to 4.1.8-1.0.0, as well as Apache Cassandra 4.x.
What should I do if I am using an affected version of the Instaclustr Cassandra-Lucene-Index?
If using an affected version, immediately upgrade to a secure version to mitigate vulnerabilities.
What type of vulnerability is CVE-2025-26511?
CVE-2025-26511 is a security vulnerability that could be exploited to compromise system integrity if not addressed.
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/type
- agent/first-publish-date
- agent/guess-ai
- agent/software-canonical-lookup
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-mrqp-q7vx-v2cx
- alias/CVE-2025-26511
- agent/weakness
- agent/last-modified-date
- agent/softwarecombine
- agent/references
- agent/description
- collector/nvd-cve
- source/NVD
- agent/severity
- agent/author
- agent/event
- collector/nvd-api
- agent/source
- agent/tags
- collector/epss-latest
- source/FIRST
- agent/epss
- collector/github-advisory
- vendor/instaclustr
- canonical/apache cassandra
- vendor/apache
- package-manager/maven