Vulnerability-Lookup

GHSA-4G9M-RFFV-H6WQ

Vulnerability from github – Published: 2026-05-14 21:30 – Updated: 2026-05-21 19:29

Summary

Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers

Details

Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org headers in requests authenticated with a shared token to bypass authorization checks and access owner/org-scoped lease operations belonging to victim accounts.

Severity

8.8 (High)


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

8.7 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/openclaw/crabbox"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-8621"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-21T19:29:07Z",
    "nvd_published_at": "2026-05-14T19:16:39Z",
    "severity": "HIGH"
  },
  "details": "Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org headers in requests authenticated with a shared token to bypass authorization checks and access owner/org-scoped lease operations belonging to victim accounts.",
  "id": "GHSA-4g9m-rffv-h6wq",
  "modified": "2026-05-21T19:29:07Z",
  "published": "2026-05-14T21:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8621"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/crabbox/pull/70"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/crabbox/commit/b657323f1d1c954cefc8444571fa6c45a8896e7f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/crabbox"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/crabbox/releases/tag/v0.12.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/crabbox-authentication-bypass-via-header-spoofing"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers"
}

CVE-2026-8621 (GCVE-0-2026-8621)

Vulnerability from cvelistv5 – Published: 2026-05-14 18:46 – Updated: 2026-10-08 15:25 X_Open Source

Title

Crabbox < v0.12.0 Authentication Bypass via Header Spoofing

Summary

Severity

8.7 (High)


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

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-14 19:37 UTC

CWE

CWE-287 - Improper Authentication

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6762 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/openclaw/crabbox/releases/tag/…	release-notes
https://github.com/openclaw/crabbox/pull/70	issue-tracking
https://github.com/openclaw/crabbox/commit/b65732…	patch
https://www.vulncheck.com/advisories/crabbox-auth…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
openclaw	crabbox	Affected: 0 , < 0.12.0 (semver) Unaffected: b657323f1d1c954cefc8444571fa6c45a8896e7f (git)

Date Public

2026-05-14 18:45

Credits

Chia Min Jun Lennon

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-8621",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-14T19:37:38.426098Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-14T19:50:07.817Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "affected",
          "packageURL": "pkg:golang/github.com/openclaw/crabbox",
          "product": "crabbox",
          "repo": "https://github.com/openclaw/crabbox",
          "vendor": "openclaw",
          "versions": [
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              "lessThan": "0.12.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "b657323f1d1c954cefc8444571fa6c45a8896e7f",
              "versionType": "git"
            }
          ]
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      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Chia Min Jun Lennon"
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            }
          ],
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        }
      ],
      "metrics": [
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
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            "exploitMaturity": "NOT_DEFINED",
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          "scenarios": [
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      "problemTypes": [
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      "providerMetadata": {
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      "references": [
        {
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          ],
          "url": "https://github.com/openclaw/crabbox/releases/tag/v0.12.0"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/openclaw/crabbox/pull/70"
        },
        {
          "tags": [
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          "url": "https://github.com/openclaw/crabbox/commit/b657323f1d1c954cefc8444571fa6c45a8896e7f"
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        {
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    "assignerShortName": "VulnCheck",
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    "datePublished": "2026-05-14T18:46:43.230Z",
    "dateReserved": "2026-05-14T18:39:14.316Z",
    "dateUpdated": "2026-10-08T15:25:49.352Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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.
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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