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TI-2026-21741 Aliases CVE-2026-27314GHSA-qxpc-96fq-wwmg

Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass

Priority MEDIUM 40CWE-267Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00274 19th percentileScored 2026-11-07
Fix Fixed org.apache.cassandra:cassandra-all (Maven): 5.0.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Cassandra5.0 – 5.0.6—No fix listedCNA
—org.apache.cassandra:cassandra-all (Maven)5.0-alpha1 to before 5.0.75.0.7Patch availableGHSA-qxpc-96fq-wwmg
  • Apache Cassandra VendorApache Affected 5.0 – 5.0.6 Fixed in — No fix listed CNA
  • org.apache.cassandra:cassandra-all (Maven) Vendor— Affected 5.0-alpha1 to before 5.0.7 Fixed in 5.0.7 Patch available GHSA-qxpc-96fq-wwmg

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:*5.0.0 to before 5.0.7VulnerableApache
  • cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:* Versions 5.0.0 to before 5.0.7 Vulnerable ·Apache

Remediation

  • Fix · GHSA-qxpc-96fq-wwmg org.apache.cassandra:cassandra-all (Maven) Fixed in 5.0.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27314
  2. 2026-10-03 Alias added: GHSA-qxpc-96fq-wwmg

References

Advisory 3

Other 3

  • TI-2016-02888 Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-20121 Remote code execution for scripted UDFs CVSS 3.1CRITICAL 9.1
  • TI-2019-02233 Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent… CVSS 3.1MEDIUM 5.9
  • TI-2018-05793 Missing authentication in Apache Cassandra CVSS 3.0CRITICAL 9.8
  • TI-2016-04292 handler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before… CVSS 3.1HIGH 7.5
  • TI-2025-16827 Apache Cassandra: User with MODIFY permission on ALL KEYSPACES can escalate privileges to superuser via unsafe actions CVSS 3.1HIGH 8.8
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences