Hazelcast has an authorization bypass in IMap Predicates API

[ Description ]Official description

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, missing authorization checks in the IMap Predicates API allow a malicious client with limited privileges to execute arbitrary code on a Hazelcast cluster member. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.

[ Fixes ]Fixes and patches

• com.hazelcast:hazelcast 5.7.0Fixed version · GitHub Advisories · maven package com.hazelcast:hazelcast: upgrade to 5.7.0 or later (affected = 5.6.0)

[ Advisories ]Government CERT advisories

• BSI CERT-Bund8 Oct 2026WID-SEC-2026-3846

  Hazelcast: Multiple vulnerabilities Translated from German

  CVE-2026-107726CVE-2026-107725

[ Packages ]Affected open-source packages

• com.hazelcast:hazelcast mavenAffected = 5.6.0 · fixed in 5.7.0 · GHSA-w294-6q5q-53p8
• com.hazelcast:hazelcast mavenAffected >= 5.5.0, < 5.5.10 · fixed in 5.7.0 · GHSA-w294-6q5q-53p8
• com.hazelcast:hazelcast mavenAffected < 5.4.5 · fixed in 5.7.0 · GHSA-w294-6q5q-53p8

[ References ]References

• docs.hazelcast.com/hazelcast/5.7/release-notes/community
• docs.hazelcast.com/hazelcast/5.7/release-notes/enterprise
• github.com/hazelcast/hazelcast/commit/5d68f4828e2a914398a39f12fe11cafd335cefe0
• github.com/hazelcast/hazelcast/security/advisories/GHSA-w294-6q5q-53p8