---
id: "CVE-2026-82904"
kind: "vulnerability"
aliases: ["CVE-2026-82904"]
title: "Apache OFBiz: unauthenticated request can pin server threads with huge loops"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["apache-ofbiz", "java", "runtime", "self-hosted"]
not_affected_if: ["not-24.09", "patched-24.09.08"]
published_at: "2026-11-05T14:17:05+00:00"
first_seen_at: "2026-11-05T14:39:18+00:00"
updated_at: "2026-11-05T14:40:43+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82904", "first_seen_at": "2026-11-05T14:39:18+00:00"}]
exploit_sources: []
---

# Apache OFBiz: unauthenticated request can pin server threads with huge loops

A single small HTTP request to Apache OFBiz can make the server run its service handler up to the signed-integer maximum number of times by encoding a huge row count in parameter names. An unauthenticated remote attacker can tie up request threads and cause denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed OFBiz version; affected versions are 24.09 before `24.09.08`
- Confirm whether the deployment is a stock configuration reachable from the internet, since the description says no authentication or CSRF requirement applies on a stock deployment

## Fix

- Apache OFBiz: upgrade to `24.09.08`

## Timeline

- 2026-11-05T14:39:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-82904

## From the sources

Uncontrolled Resource Consumption in ServiceMultiEventHandler in Apache OFBiz 24.09 before 24.09.08 on all platforms allows a remote unauthenticated attacker to pin a server request thread for an attacker-chosen number of synchronous service dispatches, up to the signed-integer maximum, by submitting a single small HTTP request whose parameter names encode a row count via the "o" suffix used by multi-form submissions, because UtilHttp.getMultiFormRowCount derives that count from the largest such suffix with no upper bound and ServiceMultiEventHandler.invoke then loops that many times calling dispatcher.runSync, with the request-map for getFinAccountTransRunningTotalAndBalances reaching this handler with no authentication or CSRF requirement on a stock deployment. Users are recommended to upgrade to version 24.09.08, which fixes this issue.

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