Is CVE-2026-27314 in the CISA KEV catalog?

No. CVE-2026-27314 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-27314?

CVE-2026-27314 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2026-27314?

CVE-2026-27314 has an EPSS score of 0.26% (18th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-27314?

Upgrade cassandra to 5.0.7 or later.

CVE & CISA-KEV Catalog

CVE-2026-27314

HIGH

8.8

CVSS v3

NVD

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.

CWE-267

How to fix

Remediation Available

cassandraNVD

Affected:>= 5.0.0, < 5.0.7Fixed in:5.0.7CVE-2026-27314derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.26%probability of exploitation in 30 days

18thpercentile

Low risk: more likely to be exploited than 18% of all known CVEs.

References

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

openwall.com

Related Vulnerabilities

Other CWE-267 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-41244	High	7.8	7.9%	KEV	Fix
CVE-2024-42365	High	7.4	4.7%	-	Fix
CVE-2025-47811	Medium	4.1	3.5%	-	Fix
CVE-2020-29396	High	8.8	3.2%	-	-
CVE-2019-10169	Medium	6.6	1.3%	-	Fix
CVE-2019-10170	Medium	6.6	1.2%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-15.