# CVE-2026-44915: Apache APISIX open redirect in cas-auth plugin

Source: https://junglewise.ai/threats/cve-2026-44915-apache-apisix-open-redirect-in-cas-auth-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-2026-44915 · Severity: info · CVSS 2.1 · Published 2026-06-19

Apache APISIX, a popular cloud-native API gateway, contains a security flaw in its CAS authentication plugin. This vulnerability allows attackers to redirect users from a legitimate company URL to a malicious website. This technique is commonly used in phishing campaigns to trick employees into providing their login credentials on a fake site that looks official.

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

## Quick answers

**Is CVE-2026-44915 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44915 being exploited in the wild.

**How severe is CVE-2026-44915?** Informational severity, with a CVSS score of 2.1, published 19 June 2026.

**Which products and versions are affected?** Apache APISIX 3.0.0 through 3.16.0.

**Is there a fix for CVE-2026-44915?** A patch was published on 2026-06-19: Fixed in version 3.17.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-44915 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-44915?** 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 Open Redirect vulnerability (CWE-601) exists in the default configuration of the cas-auth plugin in Apache APISIX. The flaw stems from the use of unsanitized cookie values during the authentication flow, allowing a remote attacker to craft a URL that redirects a victim to an arbitrary external domain. While the redirect itself does not grant direct access to the gateway, it is a primary vector for phishing attacks and credential harvesting. The issue is present in versions 3.0.0 through 3.16.0 and is resolved in version 3.17.0.

## Affected products

- Apache APISIX 3.0.0 through 3.16.0

## Timeline

- 2026-06-19: disclosed
- 2026-06-19: advisory
- 2026-06-19: patched: Fixed in version 3.17.0

## References

- [https://lists.apache.org/thread/2syk2kkzjnpzrdh98plbzj8os7wn521c](https://lists.apache.org/thread/2syk2kkzjnpzrdh98plbzj8os7wn521c)
- [http://www.openwall.com/lists/oss-security/2026/06/19/8](http://www.openwall.com/lists/oss-security/2026/06/19/8)

## Related threats

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- [Apache APISIX cryptographic signature verification bypass in saml-auth](https://junglewise.ai/threats/cve-2026-94212-improper-verification-of-cryptographic-signature-vulnerability-in)