# CVE-2026-44087: Apache APISIX identity header spoofing in openid-connect plugin

Source: https://junglewise.ai/threats/cve-2026-44087-apache-apisix-identity-header-spoofing-in-openid-connect-plugin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-19. Updated: 2026-06-21  
License: CC BY 4.0 with a link back

CVE-2026-44087 · Severity: info · CVSS 5.3 · Published 2026-06-19

Apache APISIX, a popular cloud-native API gateway, contains a security flaw in its OpenID Connect plugin. Under default configurations, an attacker can forge identity information to bypass security checks. This could allow unauthorized individuals to access protected internal resources or sensitive customer data.

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

## Quick answers

**Is CVE-2026-44087 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44087 being exploited in the wild.

**How severe is CVE-2026-44087?** Informational severity, with a CVSS score of 5.3, published 19 June 2026.

**Which products and versions are affected?** Apache APISIX 2.3 through 3.16.0.

**Is there a fix for CVE-2026-44087?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-44087 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-44087?** 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

An Insufficient Verification of Data Authenticity vulnerability (CWE-345) exists in the Apache APISIX openid-connect plugin. Under default configurations, the plugin fails to properly validate identity headers, creating an attack surface for header spoofing. A remote attacker with low privileges can exploit this to bypass authentication mechanisms and gain unauthorized access to upstream resources. The issue affects versions 2.3 through 3.16.0 and is resolved in version 3.17.0 (or 3.16.1 as per some advisory notes).

## Affected products

- Apache APISIX 2.3 through 3.16.0

## Timeline

- 2026-06-19: disclosed
- 2026-06-19: advisory

## References

- [https://lists.apache.org/thread/72ryrgdssk6s2x9d6xn14bxyyl878xfm](https://lists.apache.org/thread/72ryrgdssk6s2x9d6xn14bxyyl878xfm)
- [http://www.openwall.com/lists/oss-security/2026/06/19/7](http://www.openwall.com/lists/oss-security/2026/06/19/7)

## Related threats

- [Apache APISIX improper authentication in openid-connect plugin](https://junglewise.ai/threats/cve-2026-94276-improper-authentication-vulnerability-in-apache-apisix-on-a-route)
- [Apache APISIX authorization bypass via non-canonical URL paths](https://junglewise.ai/threats/cve-2026-94269-use-of-non-canonical-url-paths-for-authorization-decisions)
- [Apache APISIX batch-requests plugin uncontrolled resource allocation](https://junglewise.ai/threats/cve-2026-94250-allocation-of-resources-without-limits-or-throttling)
- [Apache APISIX feishu-auth and dingtalk-auth session fixation](https://junglewise.ai/threats/cve-2026-94220-cross-site-request-forgery-csrf-vulnerability-in-feishu-auth-and)
- [Apache APISIX cryptographic signature verification bypass in saml-auth](https://junglewise.ai/threats/cve-2026-94212-improper-verification-of-cryptographic-signature-vulnerability-in)