CVE-2026-8488 Overview
CVE-2026-8488 is a resource exhaustion vulnerability in Progress Software MOVEit Automation. The flaw stems from allocation of resources without limits or throttling [CWE-770], allowing an authenticated attacker to trigger excessive allocation. Successful exploitation can degrade availability of the affected service.
The issue affects MOVEit Automation versions before 2025.0.11 and versions from 2025.1.0 before 2025.1.7. Progress addressed the issue in subsequent maintenance releases documented in the vendor release notes.
Critical Impact
An authenticated network-adjacent attacker can cause partial denial of service through excessive resource allocation against the MOVEit Automation service.
Affected Products
- Progress MOVEit Automation versions before 2025.0.11
- Progress MOVEit Automation 2025.1.0 through versions before 2025.1.7
- Deployments exposing the MOVEit Automation management interface to authenticated users
Discovery Timeline
- 2026-05-20 - CVE-2026-8488 published to NVD
- 2026-05-20 - Last updated in NVD database
Technical Details for CVE-2026-8488
Vulnerability Analysis
MOVEit Automation orchestrates managed file transfer workflows across enterprise environments. The product processes user-supplied requests that drive task scheduling, file handling, and workflow execution. The vulnerability arises because the application accepts inputs that drive resource allocation without enforcing upper bounds or throttling.
An authenticated attacker with low privileges can submit requests that consume disproportionate amounts of memory, CPU, threads, or storage. Sustained exploitation degrades performance of the automation service and can disrupt scheduled file transfer jobs that depend on it.
The vulnerability does not expose confidential data and does not permit modification of files or workflow definitions. The impact is limited to availability of the MOVEit Automation service.
Root Cause
The defect maps to CWE-770: Allocation of Resources Without Limits or Throttling. The affected request handlers fail to validate or cap the magnitude of operations requested by callers. Without quotas, the service allocates resources proportional to attacker-controlled inputs until host capacity is exhausted.
Attack Vector
The attack vector is network-based and requires valid low-privilege credentials to the MOVEit Automation interface. No user interaction is required. The attacker issues crafted requests against exposed endpoints to force the service into excessive allocation loops.
No public proof-of-concept code or exploit module is available at publication. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Refer to the Progress MOVEit Automation Release Notes for vendor-provided technical context.
Detection Methods for CVE-2026-8488
Indicators of Compromise
- Sustained spikes in CPU, memory, or thread count on MOVEit Automation hosts without a corresponding increase in legitimate task volume
- Repeated authenticated requests from a single account or source IP that precede service slowdowns or restarts
- Application or Windows event log entries indicating worker process crashes, out-of-memory conditions, or task queue backlog growth
Detection Strategies
- Baseline normal resource utilization for the MOVEit Automation process and alert on sustained deviation beyond defined thresholds
- Correlate authenticated session activity with resource consumption to identify accounts driving disproportionate load
- Inspect web access logs for high-frequency requests to MOVEit Automation API endpoints from low-privilege users
Monitoring Recommendations
- Forward MOVEit Automation application logs, IIS logs, and Windows performance counters to a centralized analytics platform for correlation
- Configure alerts on failed task executions, queue depth growth, and abnormal session counts tied to non-administrative accounts
- Track patch level of MOVEit Automation hosts and flag any system running versions earlier than 2025.0.11 or 2025.1.7
How to Mitigate CVE-2026-8488
Immediate Actions Required
- Upgrade MOVEit Automation to version 2025.0.11, 2025.1.7, or later as documented in the vendor release notes
- Audit user accounts on the MOVEit Automation server and remove or disable unused low-privilege accounts
- Restrict network access to the MOVEit Automation management interface using firewall rules and VPN gating
- Rotate credentials for any accounts that show abnormal request patterns prior to patching
Patch Information
Progress Software has released fixed versions 2025.0.11 and 2025.1.7. Administrators should review the Progress MOVEit Automation Release Notes and apply the corresponding update for their deployment branch. Validate scheduled tasks and integrations after upgrade to confirm operational continuity.
Workarounds
- Limit access to the MOVEit Automation interface to known administrative networks until the patch is applied
- Apply reverse proxy or web application firewall rate limiting in front of MOVEit Automation endpoints to throttle abusive request patterns
- Reduce privileges of operator accounts to the minimum required for their assigned workflows
# Example: restrict inbound access to MOVEit Automation host using Windows Firewall
New-NetFirewallRule -DisplayName "MOVEit Automation - Admin Subnet Only" `
-Direction Inbound -Action Allow -Protocol TCP -LocalPort 443 `
-RemoteAddress 10.10.20.0/24
New-NetFirewallRule -DisplayName "MOVEit Automation - Block Other" `
-Direction Inbound -Action Block -Protocol TCP -LocalPort 443
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
