# CVE-2026-45794: OpenIdentityPlatform OpenAM unsafe Java deserialization in SNS callback

Source: https://junglewise.ai/threats/cve-2026-45794-openidentityplatform-openam-unsafe-java-deserialization-in-sns  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-06-25  
License: CC BY 4.0 with a link back

CVE-2026-45794 · Severity: high · CVSS 4 · Published 2026-09-15

OpenAM is an open-source access management platform used to secure web applications and services. A vulnerability in its push notification system allows an attacker to trick the server into running unauthorized code or performing unintended actions like file modification. This could lead to a complete system takeover or service disruption, though it requires the attacker to have a low-privileged user account to initiate the attack.

Technologies: [Open Identity Platform OpenAM Community Edition](https://junglewise.ai/threats/technologies/openam-community-edition). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven), [Open Identity Platform](https://junglewise.ai/threats/vendors/open-identity-platform).

## Quick answers

**Is CVE-2026-45794 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45794 being exploited in the wild.

**How severe is CVE-2026-45794?** High severity, with a CVSS score of 4, published 15 September 2026.

**Which products and versions are affected?** org.openidentityplatform.openam:openam-push-notification (Maven) < 16.1.1, ECOSYSTEM:introduced=0,fixed=16.1.1; Open Identity Platform OpenAM Community Edition <= 16.0.6.

**Is there a fix for CVE-2026-45794?** Yes. org.openidentityplatform.openam:openam-push-notification (Maven): upgrade to 16.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-45794 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-45794?** Check whether you run org.openidentityplatform.openam:openam-push-notification (Maven) or Open Identity Platform OpenAM Community Edition 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

- org.openidentityplatform.openam:openam-push-notification (Maven): upgrade to 16.1.1 or later

  ```sh
  # set org.openidentityplatform.openam:openam-push-notification to 16.1.1 in your pom.xml or build.gradle
  ```


## Technical details

A Deserialization of Untrusted Data (CWE-502) exists in the OpenAM Push Notification SNS callback resource. The vulnerability occurs when a REST route handling SNS push messages, which is accessible anonymously, falls back to a persistent CTS-stored predicate blob after an in-memory dispatcher entry expires. An attacker with low-privileged access can plant a malicious blob by initiating a Push Registration. When the server later processes this blob, it treats top-level keys as Java class names and passes them to Class.forName() before deserializing attacker-controlled JSON via Jackson. This provides a class-loading and construction primitive that can lead to remote code execution, file writes, or DoS depending on the classpath. The issue is patched in version 16.1.1.

## Affected products

- OpenIdentityPlatform OpenAM Community Edition <= 16.0.6

## Identifiers

- CVE-2026-45794
- GHSA-pp89-732f-3g8q

## Timeline

- 2026-06-25: advisory: GHSA-pp89-732f-3g8q published
- 2026-06-25: patched: Version 16.1.1 released

## References

- [https://api.github.com/users/wodzen](https://api.github.com/users/wodzen)
- [https://github.com/wodzen](https://github.com/wodzen)
- [https://api.github.com/users/wodzen/gists%7B/gist_id%7D](https://api.github.com/users/wodzen/gists%7B/gist_id%7D)
- [https://api.github.com/users/wodzen/repos](https://api.github.com/users/wodzen/repos)
- [https://avatars.githubusercontent.com/u/25558174?v=4](https://avatars.githubusercontent.com/u/25558174?v=4)
- [https://api.github.com/users/wodzen/events%7B/privacy%7D](https://api.github.com/users/wodzen/events%7B/privacy%7D)

## Related threats

- [OpenIdentityPlatform OpenAM auth bypass in RADIUS module](https://junglewise.ai/threats/cve-2026-46560-openidentityplatform-openam-auth-bypass-in-radius-module)
- [Open Identity Platform OpenAM session hijacking in CDCServlet](https://junglewise.ai/threats/cve-2026-45049-open-identity-platform-openam-session-hijacking-in-cdcservlet)
- [Open Identity Platform OpenAM OAuth authorization bypass in PKCE challenge](https://junglewise.ai/threats/cve-2026-48717-open-identity-platform-openam-oauth-authorization-bypass-in-pkce)
- [Open Identity Platform OpenAM OAuth client impersonation in JWKS resolver](https://junglewise.ai/threats/cve-2026-47426-open-identity-platform-openam-oauth-client-impersonation-in-jwks)
- [OpenIdentityPlatform OpenAM RCE via Groovy sandbox escape](https://junglewise.ai/threats/cve-2026-47424-openidentityplatform-openam-rce-via-groovy-sandbox-escape)