CVE-2026-63041CWE-807

CVE-2026-63041

High · published August 26, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
50.0
In the wild
Unconfirmed
What it is

Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX.

This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly.

This issue affects Apache APISIX: from 3.11.0 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
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00677 · 50.0th percentile
Weakness
CWE-807 · Reliance on Untrusted Inputs in a Security Decision
Published
2026-08-26T16:16Z
Affected products (1)
ProductVersionsFixed in
apache/apisix≥ 3.11.0, < 3.18.03.18.0
References (2)
https://lists.apache.org/thread/yg9tgn699rz7kyglw82m1775do8frjr4 · [email protected]http://www.openwall.com/lists/oss-security/2026/08/26/11 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 28 AUG 06:49Z
    EPSS moved — → 0%
    epss
  • 26 AUG 11:34Z
    Apache APISIX: attach-consumer-label does not strip client-supplied consumer-label headers
    cvelistv5