CVE-2026-75005 Apache APISIX: Unauthenticated CPU-exhaustion DoS
An unauthenticated attacker can cause CPU exhaustion and denial of service in Apache APISIX via graphql-limit-count routes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-75005?
CVE-2026-75005 is a high-severity denial of service vulnerability in Apache APISIX, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Inefficient Algorithmic Complexity vulnerability in Apache APISIX.
A single small request can pin a gateway worker at 100% CPU for an extended period in graphql-limit-count routes.
This issue affects Apache APISIX: 3.17.0.
Users are recommended to upgrade to version 3.18.0, which fixes the issue.
Weakness: CWE-407
Which versions are affected by CVE-2026-75005?
1 open source package ship an affected version, including apisix. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
apisix Bitnami | From 3.17.0 | 3.18.0 |
Products include Apache Apisix.
How do I fix CVE-2026-75005?
Upgrade apisix to 3.18.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-75005 being exploited?
There is no known exploitation of CVE-2026-75005 in the wild and no public exploit code.
Other vulnerabilities in Apache APISIX
- CVE-2022-24112 Apache APISIX Authentication Bypass
- CVE-2022-25757 Apache APISIX: the body_schema check in request-validation plugin can be bypassed
- CVE-2026-31908 Apache APISIX: forward auth plugin allows header injection
- CVE-2025-27446 Privilege escalation in Apache APISIX Java Plugin Runner
- CVE-2026-31923 Apache APISIX: Openid-connect `tls_verify` field is disabled by default
Sources
Also known as BIT-apisix-2026-75005, GHSA-7p87-32cx-94g2, MINI-hqgj-62jr-7pmh.