Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX. (CVE-2026-74848)
Description
Apache APISIX versions 2.12.0 through 3.17.0 are affected by an HTTP Request/Response Smuggling vulnerability. This flaw allows an attacker to cause other clients to receive responses chosen by the attacker or responses intended for other users on serverless-plugin routes. The issue is fixed in version 3.18.0, which users are recommended to upgrade to.
CVSS v4.0
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Apache APISIX (CVE-2026-74848) is an inconsistent interpretation of HTTP requests, commonly known as HTTP Request/Response Smuggling. This allows an attacker to manipulate how HTTP requests and responses are processed, leading to scenarios where clients may receive attacker-controlled or other users' responses on serverless-plugin routes. The affected versions range from 2.12.0 through 3.17.0. The vendor has addressed this issue in version 3.18.0.
Potential Impact
An attacker exploiting this vulnerability could cause clients to receive unauthorized or attacker-chosen HTTP responses, potentially leading to information disclosure or confusion in client-server communication on serverless-plugin routes. There is no indication of privilege escalation or remote code execution from the provided data.
Mitigation Recommendations
Users should upgrade Apache APISIX to version 3.18.0, where this vulnerability is fixed. No other mitigation or temporary workaround is indicated in the available information.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-3g86-xcpq-wppj
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-74848"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9053e2acd9273b49696780
Added to database: 08/27/2026, 15:12:34 UTC
Last enriched: 09/08/2026, 16:37:04 UTC
Last updated: 10/09/2026, 18:48:22 UTC
Views: 37
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