Red Hat Ansible Automation Platform 2.5 for…: Insufficient Verification of Data Authenticity
CVE-2026-12383 is a high-severity insufficient verification of data authenticity vulnerability in Red Hat Ansible Automation Platform 2.5 for RHEL 8 from Red Hat, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.28% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Red Hat Ansible Automation Platform 2.5 for RHEL 8 you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 | Not specified in the record | Not stated |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat Ansible Automation Platform 2.7 | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by CNA (redhat.com).
Official description
A flaw was found in the Event-Driven Ansible (EDA) server. The ExternalEventStreamViewSet uses permissive access controls (permission_classes=[AllowAny], authentication_classes=[]) and relies solely on the Subject HTTP header value for mTLS authentication without verifying that the header originated from a trusted proxy. Additionally, the expected certificate Distinguished Name is leaked in the 403 error response body. An attacker who can reach the EDA API endpoint with a spoofed Subject header can inject arbitrary events into mTLS-protected event streams, triggering downstream automation actions.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in Red Hat Ansible Automation Platform 2.5 for RHEL 8
- 9.9 Critical severity
- 7.1 High severity
- 7.6 High severity
- 8.7 High severity
- 8.7 High severity
- 9.1 Critical severity
Recent Insufficient Verification of Data Authenticity vulnerabilities
- 7.5 High severity
- 9.1 Critical severity
- 7.5 High severity
- 7.1 High severity
- 9.3 Critical severity
- 7.5 High severity
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