OpenAM has Unsafe Java Deserialization via SNS

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

7.7 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2026-45794: 0.63% estimated exploitation activity in the next 30 days; percentile 50.13 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Description A Deserialization of Untrusted Data (CWE-502) issue exists in OpenAM's Push Notification SNS callback resource. The REST route that handles SNS push messages is mounted with anonymous access and, when a supplied message identifier has expired from the in-memory dispatcher, falls back to a CTS-stored predicate blob whose top-level keys are treated as Java class names and passed to Class.forName(...) before attacker-controlled JSON is deserialized via Jackson. This impacts OpenAM Community Edition through version 16.0.6. This issue was patched in version 16.1.1. Arbitrary attacker-controlled code execution was not confirmed on tested stock classpaths for the latest release, but the flaw yields a reliable class-loading and Jackson-construction primitive whose impacts include remotely triggerable process execution, file writes, and DoS, depending on the deployment's classpath and environment.

Impact OpenAM Community Edition deployments through version 16.0.6…

Published by the source

25 Jun 2026, 16:30 UTC

Last modified by the source

28 Oct 2026, 15:45 UTC

Source last checked

29 Oct 2026, 06:45 UTC

1. Revision 3 · amended · 29 Oct 2026

   Amended from osv record GHSA-pp89-732f-3g8q

2. Revision 2 · amended · 28 Oct 2026

   Amended from ghsa record GHSA-pp89-732f-3g8q

3. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-pp89-732f-3g8q

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# Patch Next advisory brief: CVE-2026-45794

Advisory: OpenAM has Unsafe Java Deserialization via SNS
IDs: CVE-2026-45794, GHSA-pp89-732f-3g8q
Record: https://patchnext.com/advisories/cve-2026-45794 (revision 3, source checked 29 Oct 2026, 06:45 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.openidentityplatform.openam:openam-push-notification 16.1.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.openidentityplatform.openam:openam-push-notification: affected < 16.1.1; fixed in 16.1.1

## Suggested inspection (read-only)
- Maven org.openidentityplatform.openam:openam-push-notification: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.openidentityplatform.openam:openam-push-notification.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-pp89-732f-3g8q (GitHub-reviewed advisory GHSA-pp89-732f-3g8q lists affected ranges: Maven org.openidentityplatform.openam:openam-push-notification >=0 <16.1.1)
- Verified: https://osv.dev/vulnerability/GHSA-pp89-732f-3g8q (OSV record GHSA-pp89-732f-3g8q lists affected ranges: Maven org.openidentityplatform.openam:openam-push-notification >=0 <16.1.1 (fixed))

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