Vulnerability-Lookup

GHSA-2HV5-4H3G-4HJV

Vulnerability from github – Published: 2026-04-24 00:31 – Updated: 2026-05-04 21:55

Withdrawn 2026-05-04

Summary

Duplicate Advisory: OpenClaw: LINE webhook handler lacks shared pre-auth concurrency budget before signature verification

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-6336-qqw9-v6x6. This link is maintained to preserve external references.

Original Description

OpenClaw before 2026.3.31 lacks a shared pre-auth concurrency budget on the public LINE webhook path, allowing attackers to cause transient availability loss. Remote attackers can flood the webhook endpoint with concurrent requests before signature verification to exhaust resources and degrade service availability.

Severity

5.3 (Medium)


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

6.9 (Medium)


                  
                    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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.31"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-799"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-04T21:55:37Z",
    "nvd_published_at": "2026-04-23T22:16:40Z",
    "severity": "MODERATE"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-6336-qqw9-v6x6. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.31 lacks a shared pre-auth concurrency budget on the public LINE webhook path, allowing attackers to cause transient availability loss. Remote attackers can flood the webhook endpoint with concurrent requests before signature verification to exhaust resources and degrade service availability.",
  "id": "GHSA-2hv5-4h3g-4hjv",
  "modified": "2026-05-04T21:55:37Z",
  "published": "2026-04-24T00:31:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-qcc3-jqwp-5vh2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41343"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/57c47d8c7fbf5a2e70cc4dec2380977968903cad"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-line-webhook-handler-pre-auth-concurrency"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Duplicate Advisory: OpenClaw: LINE webhook handler lacks shared pre-auth concurrency budget before signature verification",
  "withdrawn": "2026-05-04T21:55:37Z"
}

CVE-2026-41343 (GCVE-0-2026-41343)

Vulnerability from cvelistv5 – Published: 2026-04-23 21:58 – Updated: 2026-04-24 14:32 X_Open Source

Title

OpenClaw < 2026.3.31 - Denial of Service via LINE Webhook Handler Pre-Auth Concurrency

Summary

Severity

6.9 (Medium)


                        
                          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

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-24 14:30 UTC

CWE

CWE-799 - Improper Control of Interaction Frequency

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7188 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/57c47…	patch
https://www.vulncheck.com/advisories/openclaw-den…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
OpenClaw	OpenClaw	Affected: 0 , < 2026.3.31 (semver) Unaffected: 2026.3.31 (semver) cpe:2.3:a:openclaw:openclaw::::::node.js::*

Date Public

2026-03-31 00:00

Credits

Nathan (@nexrin) KeenSecurityLab

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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            "other": {
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                "id": "CVE-2026-41343",
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                    "Exploitation": "none"
                  },
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-24T14:30:05.806622Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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          "nodes": [
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              "cpeMatch": [
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      "metrics": [
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            "subConfidentialityImpact": "NONE",
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    "datePublished": "2026-04-23T21:58:02.040Z",
    "dateReserved": "2026-04-20T14:05:09.184Z",
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    "state": "PUBLISHED"
  },
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}

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Vulnerability timeline

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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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