# CVE-2026-75005: Apache APISIX CPU exhaustion DoS in graphql-limit-count

Source: https://junglewise.ai/threats/cve-2026-75005-apache-apisix-cpu-exhaustion-dos-in-graphql-limit-count  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-27. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-75005 · Severity: high · CVSS 7.5 · Published 2026-08-27

Apache APISIX is an API gateway used to manage and route API traffic. A vulnerability allows an attacker to send a single small request to the graphql-limit-count route, causing a gateway worker process to consume 100% CPU for an extended period, resulting in denial of service and degraded API availability.

Technologies: [Apache APISIX](https://junglewise.ai/threats/technologies/apisix). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-75005 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-75005 being exploited in the wild.

**How severe is CVE-2026-75005?** High severity, with a CVSS score of 7.5, published 27 August 2026.

**Which products and versions are affected?** Apache APISIX 3.17.0.

**Is there a fix for CVE-2026-75005?** A patch was published on 2026-08-27: Fix available in Apache APISIX 3.18.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-75005 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-75005?** Check whether you run Apache APISIX at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an inefficient algorithmic complexity vulnerability affecting the graphql-limit-count route handler in Apache APISIX. The vulnerability allows an unauthenticated remote attacker to trigger excessive CPU consumption on a gateway worker by sending a specially crafted request, resulting in a denial-of-service condition. The attack requires network access to the API gateway and no authentication. Apache APISIX version 3.17.0 is affected; the issue is fixed in version 3.18.0.

## Affected products

- Apache APISIX 3.17.0

## Timeline

- 2026-08-26: disclosed: Vulnerability disclosed on oss-security mailing list
- 2026-08-27: published: CVE-2026-75005 published
- 2026-08-27: patched: Fix available in Apache APISIX 3.18.0

## References

- [https://lists.apache.org/thread/wfs7c9l8sokrh9hzv84lno12nx2zxpjk](https://lists.apache.org/thread/wfs7c9l8sokrh9hzv84lno12nx2zxpjk)
- [http://www.openwall.com/lists/oss-security/2026/08/26/13](http://www.openwall.com/lists/oss-security/2026/08/26/13)

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