CVE-2026-12383Network attack vector

Unauthenticated event injection via trusted Subject header

Published Jul 27, 2026 · Updated Jul 27, 2026

Authentication bypass in Red Hat Ansible Automation Platform 2 allows remote attackers to inject events through the EDA API. ExternalEventStreamViewSet permits anonymous requests and treats the client-supplied Subject header as a verified certificate DN while exposing the expected DN in errors. Exploitation requires network reachability to the EDA backend and a matching spoofed header; injected events can trigger downstream automation actions.

CVSS severity7.5
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Red Hat Ansible Automation Platform 2 allows remote attackers to inject events through the EDA API. ExternalEventStreamViewSet permits anonymous requests and treats the client-supplied Subject header as a verified certificate DN while exposing the expected DN in errors. Exploitation requires network reachability to the EDA backend and a matching spoofed header; injected events can trigger downstream automation actions.

The record

CVE
CVE-2026-12383
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
389 Directory Server
Product
Red Hat Ansible Automation Platform
Classifications
CWE-345, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Ansible Automation PlatformAffected versions are unavailable in this record.

Published CVSS scores

7.5Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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-345Insufficient Verification of Data Authenticity
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

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Your stack

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