CVE-2025-53861 identifies a security vulnerability in Red Hat Ansible Automation Platform 2 related to the cleartext transmission of sensitive cookies. Specifically, the platform transmits cookies that lack security flags such as Secure and HttpOnly over non-encrypted HTTP channels. This improper handling allows attackers positioned on the network path to perform Man-in-the-Middle (MitM) attacks, intercepting and reading sensitive cookie data. Additionally, the absence of proper cookie security flags can facilitate Cross-site Scripting (XSS) attacks, where malicious scripts injected into web contexts can access these cookies. The vulnerability does not require user interaction or authentication but has a high attack complexity due to the need for network access and the absence of known exploits in the wild. The CVSS 3.1 score of 3.1 reflects a low severity primarily due to limited confidentiality impact and no direct effect on integrity or availability. The root cause is the failure to enforce encrypted communication (HTTPS) and to set cookie attributes that restrict cookie exposure. This flaw can expose sensitive session or authentication tokens, potentially compromising user sessions or automation workflows. Since Ansible Automation Platform is widely used for IT orchestration and automation, the vulnerability could expose sensitive operational data if exploited over insecure networks. However, environments that enforce HTTPS and secure cookie policies are not vulnerable. No patches or fixes are currently linked, indicating that mitigation relies on configuration and network security best practices until official updates are released.

The primary impact of CVE-2025-53861 is the potential exposure of sensitive cookie data during transmission, which can lead to unauthorized disclosure of session tokens or authentication credentials. This exposure can enable attackers to hijack sessions or gain unauthorized access to automation platform interfaces, potentially disrupting automated workflows or accessing sensitive configuration data. However, the vulnerability does not affect data integrity or system availability directly. The low CVSS score and absence of known exploits suggest limited immediate risk, but organizations using Ansible Automation Platform 2 over unsecured networks remain vulnerable to MitM and XSS attacks. The impact is more pronounced in environments where HTTPS is not enforced or where internal networks are not adequately segmented or monitored. Attackers with network access could leverage this flaw to escalate privileges or move laterally within an organization’s infrastructure. The risk is heightened in sectors relying heavily on automation for critical infrastructure management, such as finance, telecommunications, and government. Overall, while the direct damage potential is low, the vulnerability could serve as an entry point for broader attacks if combined with other weaknesses.

To mitigate CVE-2025-53861, organizations should immediately enforce HTTPS for all communications involving the Red Hat Ansible Automation Platform 2 to ensure encryption of data in transit. Administrators must verify and configure cookie settings to include Secure and HttpOnly flags, preventing cookie exposure via client-side scripts and ensuring cookies are only sent over encrypted channels. Network segmentation and the use of VPNs or secure tunnels can reduce exposure to MitM attacks by limiting access to the automation platform’s network traffic. Regularly auditing and monitoring network traffic for unencrypted transmissions can help detect potential exploitation attempts. Organizations should also apply any forthcoming patches or updates from Red Hat promptly once available. Employing Web Application Firewalls (WAFs) with XSS protection capabilities can help mitigate exploitation via script injection. Additionally, educating users and administrators about the risks of using unsecured networks and enforcing strict access controls will reduce attack surface. Finally, integrating security testing into the deployment pipeline can catch misconfigurations related to cookie handling and transport security before production rollout.