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CVE-2026-94250— Apache APISIX: Batch response aggregation can exhaust worker memory

Quick assessment

Affected
Apache Software Foundation Apache APISIX
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache APISIX 中 batch-requests 插件存在“无限制或无节流地分配资源”的漏洞。 未经身份验证的攻击者可以通过使用 batch-requests 插件的路由，并公开暴露批量请求端点，导致网关工作进程因内存耗尽（OOM）而崩溃。该漏洞影响 Apache APISIX 1.3.0 至 3.18.0 版本。 建议用户升级至 3.19.0 版本，该版本已修复此问题。

CVSS 8.2 · High

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-94250

Vulnerability Information
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Vulnerability Title
Apache APISIX: Batch response aggregation can exhaust worker memory
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache APISIX 1.3.0 ~ 3.18.0 -

II. Public POCs for CVE-2026-94250

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III. Intelligence Information for CVE-2026-94250

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Other References for CVE-2026-94250 (1)

Same Patch Batch · Apache Software Foundation · 2026-10-01 · 8 CVEs total

CVE-2026-88789 8.6 HIGH Apache Camel Quarkus: Camel Quarkus: Forced Xalan TransformerFactory drops upstream extern
CVE-2026-94212 6.4 MEDIUM Apache APISIX: unauthenticated impersonation issue in saml-auth
CVE-2026-94269 6.3 MEDIUM Apache APISIX: Servlet-style normalization creates a route/upstream authorization mismatch
CVE-2026-78242 5.7 MEDIUM Apache APISIX: data-mask may fail to redact request headers in logger output
CVE-2026-82806 5.3 MEDIUM Apache APISIX: cross-request permission pollution via static permission list mutation
CVE-2026-94276 5.1 MEDIUM Apache APISIX: Openid-connect introspection validation issue
CVE-2026-94220 2.1 LOW Apache APISIX: session fixation issue in feishu-auth and dingtalk-auth plugin

IV. Related Vulnerabilities

Same product: Apache APISIX
Same vendor: Apache Software Foundation
Same weakness: CWE-770

V. Comments for CVE-2026-94250

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