Description
OpenClaw before 2026.3.22 contains an unbounded memory allocation vulnerability in remote media HTTP error handling that allows attackers to trigger excessive memory consumption. Attackers can send crafted HTTP error responses with large bodies to remote media endpoints, causing the application to allocate unbounded memory before failure handling occurs.
Published: 2026-04-09
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service via memory exhaustion
Action: Immediate Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-4qwc-c7g9-4xcw OpenClaw: Remote media error responses could trigger unbounded memory allocation before failure
History

Wed, 15 Apr 2026 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770

Tue, 14 Apr 2026 03:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 09 Apr 2026 21:45:00 +0000

Type Values Removed Values Added
Description OpenClaw before 2026.3.22 contains an unbounded memory allocation vulnerability in remote media HTTP error handling that allows attackers to trigger excessive memory consumption. Attackers can send crafted HTTP error responses with large bodies to remote media endpoints, causing the application to allocate unbounded memory before failure handling occurs.
Title OpenClaw < 2026.3.22 - Unbounded Memory Allocation via Remote Media Error Responses
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-789
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-14T03:10:02.033Z

Reserved: 2026-04-04T12:29:42.738Z

Link: CVE-2026-35633

cve-icon Vulnrichment

Updated: 2026-04-14T03:09:55.246Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-09T22:16:32.187

Modified: 2026-04-15T17:02:57.023

Link: CVE-2026-35633

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T19:45:12Z

Weaknesses