Apache APISIX: Batch response aggregation can exhaust worker memory

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-94250
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-01 12:17:17 UTC
Updated2026-10-01 12:54:27 UTC
DescriptionAllocation 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.

Risk And Classification

Primary CVSS: v4.0 8.2 HIGH from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of resources without limits or throttling

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.2HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS8.2HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache APISIX affected 1.3.0 3.18.0 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread.html/l7o9w8pw3w3f12vf9ybm7xtfzoo6qct4 [email protected] lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Ziyue (en)

CNA: shreemaan-abhishek (en)

CNA: shreemaan-abhishek (en)

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