CVE-2026-94250: Apache APISIX batch-requests plugin uncontrolled resource allocation

CVE-2026-94250 · Severity: info · Published 2026-10-01

Apache APISIX is an API gateway that manages and routes HTTP traffic for cloud services. The batch-requests plugin, when exposed publicly, can be exploited by an unauthenticated attacker to send extremely large batch requests that exhaust worker memory, causing an out-of-memory condition and gateway outage. An attacker can disable the entire API gateway without requiring any authentication.

Technologies: Apache APISIX. Vendors: Apache.

Quick answers

Is CVE-2026-94250 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-94250 being exploited in the wild.
How severe is CVE-2026-94250?
Informational severity, published 1 October 2026.
Which products and versions are affected?
Apache APISIX 1.3.0 through 3.18.0.
Is there a fix for CVE-2026-94250?
Yes: fixed in 3.19.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-94250 attacked?
It is attacked over the network.
Am I affected by CVE-2026-94250?
Check whether you run Apache APISIX at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 3.19.0

Technical details

The batch-requests plugin in Apache APISIX lacks resource limits or request throttling, allowing attackers to submit unbounded batch requests. An unauthenticated, network-based attacker can craft oversized requests to a publicly exposed batch endpoint with minimal preconditions, triggering out-of-memory exhaustion in gateway worker processes. The vulnerability is fixed in version 3.19.0.

Affected products

  • Apache APISIX 1.3.0 through 3.18.0

Timeline

  • 2026-10-01: disclosed

References

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