Vulnerability-Lookup

GHSA-44P3-PH5C-H5H3

Vulnerability from github – Published: 2026-06-25 21:31 – Updated: 2026-06-25 21:31

Details

Maxun before 0.0.42 contains a cross-tenant insecure direct object reference vulnerability in storage and webhook API handlers that allows authenticated users to access other users' robots and OAuth tokens. Attackers can read plaintext Google and Airtable access tokens, modify, delete, or execute other users' robots by bypassing ownership checks in API endpoints.

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": [],
  "aliases": [
    "CVE-2026-56767"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T19:16:43Z",
    "severity": "HIGH"
  },
  "details": "Maxun before 0.0.42 contains a cross-tenant insecure direct object reference vulnerability in storage and webhook API handlers that allows authenticated users to access other users\u0027 robots and OAuth tokens. Attackers can read plaintext Google and Airtable access tokens, modify, delete, or execute other users\u0027 robots by bypassing ownership checks in API endpoints.",
  "id": "GHSA-44p3-ph5c-h5h3",
  "modified": "2026-06-25T21:31:30Z",
  "published": "2026-06-25T21:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56767"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getmaxun/maxun/issues/1079"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getmaxun/maxun/pull/1088"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getmaxun/maxun/commit/11db0257531f1c23dec94727793c9444ee2873cf"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/maxun-cross-tenant-idor-in-storage-and-webhook-api-handlers"
    }
  ],
  "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/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"
    }
  ]
}

CVE-2026-56767 (GCVE-0-2026-56767)

Vulnerability from cvelistv5 – Published: 2026-06-25 18:03 – Updated: 2026-06-25 20:28 X_Open Source

Title

Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers

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 (v2.0.3)

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck

References

4 references

URL	Tags
https://github.com/getmaxun/maxun/issues/1079	technical-description
https://github.com/getmaxun/maxun/pull/1088	issue-tracking
https://github.com/getmaxun/maxun/commit/11db0257…	patch
https://www.vulncheck.com/advisories/maxun-cross-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
getmaxun	maxun	Affected: 0 , < 0.0.42 (semver) Unaffected: 0.0.42 (semver)

Date Public

2026-06-04 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-56767",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-25T20:27:10.895773Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "maxun",
          "repo": "https://github.com/getmaxun/maxun",
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              "version": "0",
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        }
      ],
      "metrics": [
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          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
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    "dateReserved": "2026-06-22T21:55:17.942Z",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-44P3-PH5C-H5H3

CVE-2026-56767 (GCVE-0-2026-56767)

Tags

Sightings

Nomenclature