TI-2026-33529 Aliases CVE-2026-45794 GHSA-pp89-732f-3g8q

OpenAM Unsafe Java Deserialization via SNS

LOW 37CWE-502Published 2026-09-15 · Updated 2026-09-16

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: High
Attack requirements: Present
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the anonymous Push Notification SNS callback handled by SnsMessageResource falls back to a CTS predicate blob after a messageId expires from the in-memory dispatcher, treats top-level blob keys as Java class names for Class.forName, and deserializes attacker-controlled JSON through Jackson. A low-privileged user who starts Push Registration and obtains the messageId, shared secret, and challenge can wait for expiry, replace the persistent blob through anonymous callbacks, and trigger class loading and construction in the OpenAM JVM. The primitive can cause classpath-dependent process execution, file writes, or denial of service, although command execution was not confirmed on the tested stock classpath. This issue is fixed in version 16.1.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00627 50th percentileScored 2026-11-07

Fix Fixed OpenAM (OpenIdentityPlatform): 16.1.1org.openidentityplatform.openam:openam-push-notification (Maven): 16.1.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
OpenIdentityPlatform	OpenAM	before 16.1.1	16.1.1	Patch available	CNA
—	org.openidentityplatform.openam:openam-push-notification (Maven)	before 16.1.1	16.1.1	Patch available	GHSA-pp89-732f-3g8q

OpenAM VendorOpenIdentityPlatform Affected before 16.1.1 Fixed in 16.1.1 Patch available CNA
org.openidentityplatform.openam:openam-push-notification (Maven) Vendor— Affected before 16.1.1 Fixed in 16.1.1 Patch available GHSA-pp89-732f-3g8q

Remediation

Fix · CNA OpenAM (OpenIdentityPlatform) Fixed in 16.1.1
Fix · GHSA-pp89-732f-3g8q org.openidentityplatform.openam:openam-push-notification (Maven) Fixed in 16.1.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-45794
2026-10-03 Alias added: GHSA-pp89-732f-3g8q
2026-10-28 3 new references · GHSA-pp89-732f-3g8q
2026-10-30 EPSS moved to the 50th–90th percentile

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-45794

Other 4

TI-2025-20332 OpenDJ Denial of Service (Dos) using alias loop CVSS 4.0HIGH 8.7
TI-2026-25836 Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAM CVSS 4.0CRITICAL 9.3
TI-2026-86693 Session token disclosure in OpenAM notification WebSocket CVSS 4.0CRITICAL 10.0
TI-2026-86692 Authentication bypass in OpenAM SAML login accepts unsigned assertions CVSS 4.0CRITICAL 9.3
TI-2026-86691 Privilege escalation in OpenAM via self-registration attribute bypass CVSS 4.0CRITICAL 9.3
TI-2026-86685 Unbounded Java deserialization in OpenAM enables denial of service CVSS 4.0HIGH 8.7

See all 54 →

Sources

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