# CVE-2026-94220: Apache APISIX feishu-auth and dingtalk-auth session fixation

Source: https://junglewise.ai/threats/cve-2026-94220-cross-site-request-forgery-csrf-vulnerability-in-feishu-auth-and  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-01. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-94220 · Severity: info · Published 2026-10-01

Apache APISIX is an API gateway that protects and manages backend services. A session fixation vulnerability in the feishu-auth and dingtalk-auth plugins allows an attacker to trick a user into clicking a malicious link, causing the user's authenticated session to be established under the attacker's identity instead. Any actions the user performs—such as file uploads, form submissions, and account changes—would be attributed to and executed in the attacker's account.

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

## Quick answers

**Is CVE-2026-94220 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94220 being exploited in the wild.

**How severe is CVE-2026-94220?** Informational severity, published 1 October 2026.

**Which products and versions are affected?** Apache APISIX 3.17.0 through 3.18.0.

**Is there a fix for CVE-2026-94220?** Yes: fixed in 3.19.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-94220 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-94220?** 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.

## How to fix

- Fixed in 3.19.0

## Technical details

The feishu-auth and dingtalk-auth authentication plugins in Apache APISIX are vulnerable to session fixation attacks via CSRF. An unauthenticated attacker can craft a link that, when clicked by an authenticated user, causes their browser session on protected routes to be fixed to the attacker's identity. This requires user interaction (clicking the link) and network access, but no prior authentication. The attacker gains the ability to hijack user sessions and perform unauthorized actions in the victim's name.

## Affected products

- Apache APISIX 3.17.0 through 3.18.0

## Timeline

- 2026-10-01: disclosed

## References

- [https://lists.apache.org/thread.html/bf5q45ddyr2hf3hxkt56dzjlttgpdg78](https://lists.apache.org/thread.html/bf5q45ddyr2hf3hxkt56dzjlttgpdg78)
- [http://www.openwall.com/lists/oss-security/2026/10/01/5](http://www.openwall.com/lists/oss-security/2026/10/01/5)

## 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 cryptographic signature verification bypass in saml-auth](https://junglewise.ai/threats/cve-2026-94212-improper-verification-of-cryptographic-signature-vulnerability-in)
- [Apache APISIX session data persistence in authorization scope](https://junglewise.ai/threats/cve-2026-82806-exposure-of-data-element-to-wrong-session-vulnerability-in-apache)