CVE-2026-74848CWE-444

CVE-2026-74848

High · published August 27, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
47.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
7.0 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
EPSS
0.00594 · 47.7th percentile
Weakness
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Published
2026-08-27T14:16Z
Affected products (1)
ProductVersionsFixed in
apache/apisix≥ 2.12.0, < 3.18.03.18.0
References (2)
https://lists.apache.org/thread/xdgpszmw8dw4wvmfxy043d83m150kx3n · [email protected]http://www.openwall.com/lists/oss-security/2026/08/26/12 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 28 AUG 06:53Z
    EPSS moved — → 0%
    epss
  • 27 AUG 09:16Z
    Apache APISIX: Cross-user response poisoning in serverless plugins
    cvelistv5