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VULNERABILITIES

CVE-2026-28478 Details

Description

OpenClaw versions prior to 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930 [email protected]Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-q447-rj3r-2cgh [email protected]Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-webhook-request-body-buffering [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-770Allocation of Resources Without Limits or Throttling[email protected]

Affected Products

ProductVersions
openclaw openclaw
< 2026.2.13

CPE

  • cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-28478
NVD Published Date:
Mar 5, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-28478 Details - Not Deferred