# Hazelcast has an authorization bypass in IMap Predicates API

Advisory record · `GHSA-w294-6q5q-53p8`

- **Identifiers:** `GHSA-w294-6q5q-53p8` · `CVE-2026-107725`
- **State:** Confirmed
- **Severity:** CVSS 8.7 High
- **Critical:** No
- **Weakness (CWE):** [CWE-862](https://cwe.mitre.org/data/definitions/862.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md)
- **Published:** 8 Oct 2026
- **Updated:** 8 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 8 Oct 2026, 22:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `com.hazelcast:hazelcast` (Maven): affected `>=5.6.0, <5.7.0 || >=5.5.0, <5.7.0 || <5.7.0`; fixed in `5.7.0`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Hazelcast (Maven package com.hazelcast:hazelcast) versions before 5.7.0 are affected. Missing authorization checks in the IMap Predicates API may allow a malicious client to execute arbitrary code on a Hazelcast member. Upgrade to 5.7.0; Enterprise users can also use 5.6.1, 5.5.10, or 5.4.5, and no workaround is listed.

Written 2 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.7 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0039, the 32nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:16 UTC: First seen by agentprime
- 31 Oct 2026, 14:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-w294-6q5q-53p8)

## Sources

- [GitHub Advisory Database: GHSA-w294-6q5q-53p8](https://github.com/advisories/GHSA-w294-6q5q-53p8)
- [OSV: GHSA-w294-6q5q-53p8](https://osv.dev/vulnerability/GHSA-w294-6q5q-53p8)
- <https://github.com/hazelcast/hazelcast/security/advisories/GHSA-w294-6q5q-53p8>
- <https://github.com/hazelcast/hazelcast/commit/5d68f4828e2a914398a39f12fe11cafd335cefe0>
- <https://docs.hazelcast.com/hazelcast/5.7/release-notes/community>
- <https://docs.hazelcast.com/hazelcast/5.7/release-notes/releases>
- <https://github.com/hazelcast/hazelcast>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-w294-6q5q-53p8>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-w294-6q5q-53p8/>. Everything for agents: <https://agentprime.io/llms.txt>.