High severity · published Oct 1, 2026
CVE-2026-94250
Apache APISIX: Batch response aggregation can exhaust worker memory
8.2
CVSS
0.3%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache APISIX · Apache Software Foundation
1.3.0 through 3.18.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94250
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94250
vendor-advisory
https://lists.apache.org/thread.html/l7o9w8pw3w3f12vf9ybm7xtfzoo6qct4
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