CVE-2026-32049 in OpenClaw
Summary
by MITRE • 03/21/2026
OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.
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Analysis
by VulDB Data Team • 03/27/2026
The vulnerability identified as CVE-2026-32049 affects OpenClaw versions prior to 2026.2.22 and represents a critical issue in media processing and memory management within the system's channel ingestion paths. This flaw manifests as an inconsistent enforcement of configured inbound media byte limits, creating a pathway for malicious actors to exploit the system's resource handling mechanisms. The vulnerability specifically targets the buffering mechanisms that process remote media payloads across multiple channel ingestion paths, where proper size limitations should prevent excessive memory consumption.
The technical flaw stems from inadequate validation and enforcement of media payload size constraints within the OpenClaw platform's media processing pipeline. When remote attackers send oversized media payloads, the system fails to properly throttle or reject these excessive inputs before they are buffered into memory. This allows for memory exhaustion scenarios where the system's memory usage escalates beyond normal operational parameters. The vulnerability operates at the intersection of memory management and input validation, creating a condition where legitimate system operations can be disrupted by maliciously crafted media data. The inconsistent enforcement suggests that the size limit checks may be bypassed under certain conditions or that the implementation does not uniformly apply across all channel ingestion paths.
The operational impact of this vulnerability extends beyond simple resource exhaustion to potential process instability and system degradation. When attackers successfully exploit this weakness, they can trigger memory allocation failures that may lead to application crashes, service interruptions, or even complete system instability. The multi-channel nature of the ingestion paths means that the impact can compound as multiple channels simultaneously process oversized payloads, potentially overwhelming the system's memory resources more rapidly. This creates a scenario where the system becomes increasingly vulnerable to further exploitation or may become unavailable to legitimate users. The vulnerability essentially transforms a controlled resource consumption scenario into an unbounded memory consumption event that can destabilize the entire platform.
Mitigation strategies for CVE-2026-32049 should focus on implementing robust input validation and enforcing strict media payload size limits across all channel ingestion paths. Organizations should immediately upgrade to OpenClaw version 2026.2.22 or later where this vulnerability has been addressed through proper enforcement of configured inbound media byte limits. Additionally, system administrators should implement monitoring solutions to detect unusual memory usage patterns that may indicate exploitation attempts. The fix aligns with common security practices for preventing resource exhaustion attacks and addresses the underlying CWE categories related to improper input validation and memory management. From an ATT&CK framework perspective, this vulnerability maps to techniques involving resource exhaustion and process manipulation, with potential lateral movement implications if the instability leads to system compromise. Network segmentation and rate limiting should be implemented as additional defensive measures to prevent widespread exploitation across multiple channels simultaneously.