High7.0Apache Software Foundation

High [CVE-2026-74848] Apache APISIX: Cross-user response poisoning in serverless plugins

This high-severity Apache Software Foundation advisory covers CVE-2026-74848 affecting Apache APISIX.

CVE-2026-74848 Published Aug 27, 2026Updated by vendor Aug 27, 2026

CVE-2026-74848

Affected products & platforms

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Summary

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.

An attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.

This issue affects Apache APISIX: from 2.12.0 through 3.17.0.

Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Affected versions

Apache APISIX 2.12.0 through 3.17.0

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Fixed versions

3.18.0

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-74848 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-74848NVD CVE.org MITRE

Official resources

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