CVE-2026-29609
Denial of Service in OpenClaw fetchWithGuard via Memory Exhaustion
Publication date: 2026-03-05
Last updated on: 2026-03-11
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| openclaw | openclaw | to 2026.2.14 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-770 | The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in OpenClaw versions prior to 2026.2.14 within the fetchWithGuard function. The function allocates memory for the entire response payload before applying the maximum byte limits. Because of this, a remote attacker can send oversized responses without content-length headers, causing the system to exhaust its memory resources.
This leads to a denial of service condition by making the system unavailable due to memory exhaustion.
How can this vulnerability impact me? :
The primary impact of this vulnerability is a denial of service (DoS) condition. An attacker can exploit it remotely to cause memory exhaustion on the affected system, leading to loss of availability.
This means that legitimate users may be unable to access services or applications relying on the vulnerable OpenClaw versions, resulting in potential downtime and disruption.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know