CVE-2026-62379Network attack vectorHinoki check available

Unauthenticated code execution via unsafe class instantiation

Published Sep 15, 2026 · Updated Sep 15, 2026

Code injection in OpenAM 16.1.1 and earlier allows remote attackers to execute code through a crafted pre-authentication request. AuthXMLUtils.createCustomCallback reads className from a CustomCallback XML element, initializes and instantiates that class before verifying DSAMECallbackInterface. Default deployments expose /authservice without authentication, allowing arbitrary class initialization and unsafe Subject deserialization to compromise the server process.

CVSS severity9.8
Critical
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in OpenAM 16.1.1 and earlier allows remote attackers to execute code through a crafted pre-authentication request. AuthXMLUtils.createCustomCallback reads className from a CustomCallback XML element, initializes and instantiates that class before verifying DSAMECallbackInterface. Default deployments expose /authservice without authentication, allowing arbitrary class initialization and unsafe Subject deserialization to compromise the server process.

The record

CVE
CVE-2026-62379
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Open Identity Platform
Product
OpenAM
Classifications
CWE-94, CWE-470, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 16.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open Identity Platform · OpenAMversion=< 16.1.2

Published CVSS scores

9.8OpenIdentityPlatformCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-470Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo