Apache Cassandra ↗

Apache · Database

Track your version:Monitors Apache Cassandra and tailors your dashboard to that exact version.

all versions0/100 Critical · exploited

Summary iPlain-English security verdict for Apache Cassandra, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.

Apache Cassandra currently scores 0/100 — critical, with active exploitation. 1 of its known vulnerability is being actively exploited in the wild (CISA KEV), including CVE-2016-3427. Upgrade immediately and review your exposure to the actively-exploited CVEs below.

Disclosure trend iNew CVEs published for Apache Cassandra each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.

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Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.

Most urgent first — actively exploited, then likeliest to be exploited.

CVE-2016-3427 CRITICAL exploited Improper access control EPSS 92% → fixed in 3.11.8 CVE-2021-44521 CRITICAL Code injection EPSS 55% → fixed in 4.0.2 CVE-2019-2684 MEDIUM EPSS 38% → fixed in 3.11.8 CVE-2018-8016 CRITICAL Missing authentication EPSS 2% → see advisory

See all 16 known Apache Cassandra CVEs & security history →

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Frequently asked

Is Apache Cassandra safe and patched?

What should I do about Apache Cassandra now?

Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Apache's official advisory. Some issues are under active exploitation, so treat this as urgent.

lifecycle unknown — needs latest supported version

Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Apache's official advisory before you patch or upgrade — Apache Cassandra official site ↗