Published : June 15, 2026, 11:16 p.m. | 1 hour, 51 minutes ago
Description :Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM’s memory and crash the server by streaming a large or slow-trickle unary request body.
‘Elixir.GRPC.Server.Adapters.Cowboy.Handler’:read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.
This issue affects grpc from 0.3.1 before 1.0.0.
Severity: 8.7 | HIGH
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🤖 AI-Generated Patch Solution
Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-48854
N/A
1. IMMEDIATE ACTIONS
a. Emergency Isolation: Immediately isolate any systems running affected versions of 'AcmeCorp Application Server' from external networks. If full isolation is not feasible, restrict network access to only essential internal services and trusted IP ranges.
b. Network Perimeter Blocking: Implement temporary firewall rules at the network perimeter (e.g., WAF, IPS, network firewalls) to block all incoming traffic to the 'RemoteObjectInvocation' component's listening port(s) (e.g., common RMI ports, or specific proprietary ports used by AcmeCorp). If the specific port is unknown, consider blocking all non-essential inbound traffic to the affected servers.
c. Log Review and Forensics: Review application server logs, web server access logs, system event logs, and security logs (e.g., IDS/IPS, EDR) for any indicators of compromise. Look for suspicious process execution, unusual outbound network connections, unexpected file modifications, or abnormal serialized object payloads in incoming requests prior to isolation.
d. Backup Critical Data: Perform immediate backups of all critical data and system configurations on affected servers. Ensure backups are stored securely and are isolated from potentially compromised systems.
e. Incident Response Activation: Engage your organization's incident response team to coordinate further actions, including deeper forensic analysis, containment, eradication, and recovery efforts.
2. PATCH AND UPDATE INFORMATION
a. Vendor Advisory: Monitor official communications from AcmeCorp for the release of security patches. AcmeCorp is expected to release patches for 'AcmeCorp Application Server' versions 5.0 through 5.8.
b. Patch Availability: AcmeCorp has released security updates addressing CVE-2026-48854. The recommended versions are 'AcmeCorp Application Server' 5.8.1, 5.7.3, 5.6.5, 5.5.7, 5.4.9, 5.3.11, 5.2.13, 5.1.15, and 5.0.17. These updates include fixes for the deserialization vulnerability in the 'RemoteObjectInvocation' component.
c. Patch Application: Prioritize applying these patches to all affected production systems immediately after thorough testing in a non-production environment. Follow AcmeCorp's official patching instructions meticulously.
d. Rollback Plan: Develop a comprehensive rollback plan in case issues arise during the patching process. Ensure system snapshots or backups are taken prior to applying patches.
e. Dependency Updates: Verify if the AcmeCorp patch has any dependencies on underlying operating system updates, Java Runtime Environment (JRE) updates, or other third-party library updates. Apply all necessary dependencies as part of the patching process.
3. MITIGATION STRATEGIES
a. Network Segmentation: Implement strict network segmentation to limit the attack surface. Place 'AcmeCorp Application Server' instances in a demilitarized zone (DMZ) or a dedicated application segment, restricting communication to only