Critical Hazelcast CVEs
3 CVEs, 1 protected by Waratek
Overview 3 matches · 1 protected · 0 exploited · 0 CISA KEV · 1 public PoC · 0 EPSS ≥ 0.5
Protected by Waratek
1
33.3%
Rule in development
0
0.0%
Mitigation candidate
0
0.0%
No exploit published
2
66.7%
blocked by ARMR today
1
33.3%
partly blocked
0
0.0%
not blocked
2
66.7%
not established
0
0.0%
unrecorded
0
0.0%
Exploited
0
0.0%
Working exploit published
0
0.0%
Proof of concept only
1
33.3%
Forecast only
0
0.0%
No public exploit
2
66.7%
split by
peak 1 / quarter
Q1 221
Protected by Waratek1
Critical1
blocked by ARMR today1
Proof of concept only1
Q2 220
Q3 220
Q4 221
No exploit published1
Critical1
not blocked1
No public exploit1
Q1 230
Q2 230
Q3 230
Q4 230
Q1 240
Q2 240
Q3 240
Q4 240
Q1 250
Q2 250
Q3 250
Q4 250
Q1 260
Q2 260
Q3 260
Q4 261
No exploit published1
Critical1
not blocked1
No public exploit1
Q2 22Q4 22Q2 23Q4 23Q2 24Q4 24Q2 25Q4 25Q2 26Q4 26
| CVE | Severity | Published▾ | Status | Exploitation | Description |
|---|---|---|---|---|---|
| CVE-2026-107726 | Critical | 2026-10-08 | No exploit published | No public exploit | Hazelcast is a unified real-time data platform combining stream processing with a fast data store. Prior to 5.4.5, 5.5.10, and 5.6.1, improper validation of data supplied by a malicious client able to connect to a cluster allows arbitrary reads from a cluster member's Java heap, off-heap data, and JVM process address space. The same flaw can crash cluster members and, in some Hazelcast Enterprise Edition configurations, corrupt memory with possible arbitrary code execution. Both slim and full distributions are affected. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0. |
| CVE-2022-36437 | Critical | 2022-12-29 | No exploit published | No public exploit | The Connection handler in Hazelcast and Hazelcast Jet allows a remote unauthenticated attacker to access and manipulate data in the cluster with the identity of another already authenticated connection. The affected Hazelcast versions are through 4.0.6, 4.1.9, 4.2.5, 5.0.3, and 5.1.2. The affected Hazelcast Jet versions are through 4.5.3. |
| CVE-2022-0265 | Critical | 2022-03-03 | Protected by Waratek | Proof of concept only | Improper Restriction of XML External Entity Reference in GitHub repository hazelcast/hazelcast in 5.1-BETA-1. |