CVE-2026-28478

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Source
https://cve.org/CVERecord?id=CVE-2026-28478
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28478.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-28478
Aliases
Published
2026-03-05T21:59:53.887Z
Modified
2026-08-12T03:51:40.704347075Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28478.json",
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-770"
    ]
}
References

Affected packages

Git / github.com/openclaw/openclaw

Affected ranges

Type
GIT
Repo
https://github.com/openclaw/openclaw
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e91d957d7089d2ca9589255245eead0edddc16d5
Fixed
3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930
Database specific
Show details 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2026.2.13"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v1.*
v1.0.4
v1.1.0
v1.2.0
v1.2.1
v1.2.2
v1.3.0
v2.*
v2.0.0-beta1
v2.0.0-beta2
v2.0.0-beta3
v2.0.0-beta4
v2.0.0-beta5
v2026.*
v2026.1.10
v2026.1.11
v2026.1.11-1
v2026.1.11-2
v2026.1.11-3
v2026.1.12
v2026.1.12-2
v2026.1.13
v2026.1.14-1
v2026.1.15
v2026.1.16-2
v2026.1.20
v2026.1.21
v2026.1.22
v2026.1.23
v2026.1.24
v2026.1.24-1
v2026.1.29
v2026.1.30
v2026.1.5
v2026.1.5-1
v2026.1.5-2
v2026.1.5-3
v2026.1.8
v2026.1.9
v2026.2.1
v2026.2.12
v2026.2.2
v2026.2.3
v2026.2.6
v2026.2.6-1
v2026.2.6-2
v2026.2.6-3
v2026.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28478.json"