Inefficient Algorithmic Complexity in Apache APISIX - CVE-2026-75005
Published: August 27, 2026
Vulnerability identifier: #VU145877
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-75005
CWE-ID: CWE-407
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to inefficient algorithmic complexity in graphql-limit-count routes when handling a small crafted request. A remote attacker can send a small crafted request to cause a denial of service.
A single request can pin a gateway worker at 100% CPU for an extended period.
Affected software
Apache APISIX
How to mitigate CVE-2026-75005
Install security update from vendor's website.
Apache APISIX - update to 3.18.0