CVE-2026-18141
highpriority · track · 0EPSS 0.004 · 36 %ileEUUSEPSS · scored 2026-10-24
A flaw was found in aap-gateway, a component of Ansible Automation Platform's Event-Driven Ansible (EDA). An unauthenticated remote attacker can bypass mutual Transport Layer Security (mTLS) authentication for event streams. This is achieved by manipulating the event stream URL and forging the HTTP Subject header. The system also inadvertently discloses the expected certificate subject in error messages, which simplifies the attack. This vulnerability allows an attacker to inject arbitrary events into EDA, potentially triggering automated workflows.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-18141cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2508155cnnvd
- https://access.redhat.com/errata/RHSA-2026:50336enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:50340enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:50479enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-18141enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2508155enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:50336nvd
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