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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-18141

CVE-2026-18141: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh8.2

    High [CVE-2026-18141] Authentication bypass in Event-Driven Ansible via forged HTTP header

    CVE-2026-18141Source published Source updated

    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. The vulnerability is exacerbated by information disclosure, where error messages reveal the expected certificate subject, simplifying targeted exploitation against default mTLS deployments. Red Hat severity: Important — CVSS 8.2…

    Affected products in this advisory
    • Red Hat Ansible Automation Platform 2.6 for RHEL 9
    • Red Hat Ansible Automation Platform 2.7
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • automation-eda-controller-0:1.2.11-1.el9ap
    • ansible-automation-platform-26/gateway-rhel9:1785780020
    • ansible-automation-platform-27/gateway-rhel9:1785435970
    • RHSA-2026:50336

    2 more entries in the full advisory.

    Mitigation guidance
    • Restrict network access to the EDA event stream endpoints at the firewall or load balancer level. Ensure that only trusted sources are permitted to reach the event stream ports. Additionally, monitor EDA event logs for any unexpected events originating from unverified sources.
    Full advisory and evidenceOpen source bulletin

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