Vulnerability-Lookup

CNVD-2026-13554

Vulnerability from cnvd - Published: 2026-03-12

Title

OpenClaw拒绝服务漏洞（CNVD-2026-13554）

Description

OpenClaw是一款用于网络数据获取的网关工具。 OpenClaw存在拒绝服务漏洞。攻击者可利用该漏洞通过解析超大或深度嵌套HTML响应耗尽内存，诱使用户访问恶意URL导致网关进程崩溃。

Severity

高

Patch Name

OpenClaw拒绝服务漏洞（CNVD-2026-13554）的补丁

Patch Description

OpenClaw是一款用于网络数据获取的网关工具。 OpenClaw存在拒绝服务漏洞。攻击者可利用该漏洞通过解析超大或深度嵌套HTML响应耗尽内存，诱使用户访问恶意URL导致网关进程崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞。补丁获取链接： https://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8

Reference

https://github.com/openclaw/openclaw/commit/166cf6a3e04c7df42bea70a7ad5ce2b9df46d147 https://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8 https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-response-parsing-in-web-fetch-tool

Impacted products

Name
OpenClaw OpenClaw <2026.2.15

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-28394",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-28394"
    }
  },
  "description": "OpenClaw\u662f\u4e00\u6b3e\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u83b7\u53d6\u7684\u7f51\u5173\u5de5\u5177\u3002\n\nOpenClaw\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u89e3\u6790\u8d85\u5927\u6216\u6df1\u5ea6\u5d4c\u5957HTML\u54cd\u5e94\u8017\u5c3d\u5185\u5b58\uff0c\u8bf1\u4f7f\u7528\u6237\u8bbf\u95ee\u6076\u610fURL\u5bfc\u81f4\u7f51\u5173\u8fdb\u7a0b\u5d29\u6e83\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\u3002\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-13554",
  "openTime": "2026-03-12",
  "patchDescription": "OpenClaw\u662f\u4e00\u6b3e\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u83b7\u53d6\u7684\u7f51\u5173\u5de5\u5177\u3002\r\n\r\nOpenClaw\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u89e3\u6790\u8d85\u5927\u6216\u6df1\u5ea6\u5d4c\u5957HTML\u54cd\u5e94\u8017\u5c3d\u5185\u5b58\uff0c\u8bf1\u4f7f\u7528\u6237\u8bbf\u95ee\u6076\u610fURL\u5bfc\u81f4\u7f51\u5173\u8fdb\u7a0b\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "OpenClaw\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2026-13554\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "OpenClaw OpenClaw \u003c2026.2.15"
  },
  "referenceLink": "https://github.com/openclaw/openclaw/commit/166cf6a3e04c7df42bea70a7ad5ce2b9df46d147\r\nhttps://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8\r\nhttps://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-response-parsing-in-web-fetch-tool",
  "serverity": "\u9ad8",
  "submitTime": "2026-03-12",
  "title": "OpenClaw\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2026-13554\uff09"
}

CVE-2026-28394 (GCVE-0-2026-28394)

Vulnerability from cvelistv5 – Published: 2026-03-05 21:59 – Updated: 2026-03-11 13:35

Title

OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool

Summary

OpenClaw versions prior to 2026.2.15 contain a denial of service vulnerability in the web_fetch tool that allows attackers to crash the Gateway process through memory exhaustion by parsing oversized or deeply nested HTML responses. Remote attackers can social-engineer users into fetching malicious URLs with pathological HTML structures to exhaust server memory and cause service unavailability.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-11 13:34 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5277 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/openclaw/openclaw/security/adv…	vendor-advisory
https://github.com/openclaw/openclaw/commit/166cf…	patch
https://www.vulncheck.com/advisories/openclaw-den…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
OpenClaw	OpenClaw	Affected: 0 , < 2026.2.15 (custom) cpe:2.3:a:openclaw:openclaw::::::node.js::*

Date Public

2026-02-18 00:00

Credits

Vincent Koc (@vincentkoc)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-28394",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-11T13:34:58.753190Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-11T13:35:37.639Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/openclaw",
          "product": "OpenClaw",
          "vendor": "OpenClaw",
          "versions": [
            {
              "lessThan": "2026.2.15",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
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      "cpeApplicability": [
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              "cpeMatch": [
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                  "versionEndExcluding": "2026.2.15",
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                }
              ],
              "negate": false,
              "operator": "OR"
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      "credits": [
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          "type": "reporter",
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        }
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      "datePublic": "2026-02-18T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
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          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "valueDensity": "NOT_DEFINED",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        },
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          "tags": [
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          "url": "https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-response-parsing-in-web-fetch-tool"
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    "datePublished": "2026-03-05T21:59:22.734Z",
    "dateReserved": "2026-02-27T15:15:57.473Z",
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    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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CNVD-2026-13554

CVE-2026-28394 (GCVE-0-2026-28394)

Tags

Sightings

Nomenclature

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