APISIX batch-requests plugin OOM without limits 3.18.0
CVE-2026-94250 Published on October 1, 2026
Apache APISIX: Batch response aggregation can exhaust worker memory
Allocation of resources without limits or throttling vulnerability in batch-requests plugin in Apache APISIX.
An unauthenticated caller can drive a gateway worker into OOM via a route where the batch-requests plugin is used and the batch endpoint is publicly exposed. This issue affects Apache APISIX: from 1.3.0 through 3.18.0.
Users are recommended to upgrade to version 3.19.0, which fixes the issue.
Vulnerability Analysis
CVE-2026-94250 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2026-94250
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Affected Versions
Apache Software Foundation Apache APISIX:- Version 1.3.0, <= 3.18.0 is affected.