Vulnerability-Lookup

CVE-2026-53836 (GCVE-0-2026-53836)

Vulnerability from cvelistv5 – Published: 2026-06-12 21:56 – Updated: 2026-06-15 17:22 X_Open Source

Title

OpenClaw < 2026.5.12 - Allowlist Bypass via PowerShell Encoded-Command Aliases

Summary

OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in PowerShell encoded-command handling that allows attackers to execute encoded commands using abbreviated flag aliases not recognized by the allowlist parser. Remote authenticated operators can bypass execution allowlist checks by using unrecognized encoded-command alias forms to execute arbitrary PowerShell content.

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-184 - Incomplete List of Disallowed Inputs

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/openclaw/openclaw/security/adv…	vendor-advisory
https://www.vulncheck.com/advisories/openclaw-all…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
OpenClaw	OpenClaw	Affected: 0 , < 2026.5.12 (semver) Unaffected: 2026.5.12 (semver)

Date Public

2026-05-28 00:00

Credits

Edward-x (@YLChen-007)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-53836

Vulnerability from fkie_nvd - Published: 2026-06-12 22:16 - Updated: 2026-07-23 09:10

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/openclaw/openclaw/security/advisories/GHSA-j472-gf56-x589	Mitigation, Vendor Advisory
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-powershell-encoded-command-aliases	Third Party Advisory

Impacted products

	Vendor	Product	Version
	openclaw	openclaw	*

JSON

To clipboard

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    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53836",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-15T17:22:32.639769Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-12T22:16:55.413",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-j472-gf56-x589"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-powershell-encoded-command-aliases"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-184"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-FFHM-8FWQ-7Q27

Vulnerability from github – Published: 2026-06-13 00:34 – Updated: 2026-06-13 00:34

Details

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-2026-53836"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-184"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-12T22:16:55Z",
    "severity": "HIGH"
  },
  "details": "OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in PowerShell encoded-command handling that allows attackers to execute encoded commands using abbreviated flag aliases not recognized by the allowlist parser. Remote authenticated operators can bypass execution allowlist checks by using unrecognized encoded-command alias forms to execute arbitrary PowerShell content.",
  "id": "GHSA-ffhm-8fwq-7q27",
  "modified": "2026-06-13T00:34:33Z",
  "published": "2026-06-13T00:34:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-j472-gf56-x589"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53836"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-powershell-encoded-command-aliases"
    }
  ],
  "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"
    }
  ]
}

WID-SEC-W-2026-1913

Vulnerability from csaf_certbund - Published: 2026-06-14 22:00 - Updated: 2026-06-14 22:00

Summary

OpenClaw: Mehrere Schwachstellen ermöglichen die Umgehung von Sicherheitsmaßnahmen

Severity

Hoch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: OpenClaw ist ein persönlicher KI-Assistent zur Ausführung auf eigenen Geräten.

Angriff: Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um Sicherheitsmaßnahmen zu umgehen und so Daten zu manipulieren oder beliebigen Code auszuführen.

Betroffene Betriebssysteme: - Sonstiges - UNIX

CVE-2026-53830

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Open Source OpenClaw <2026.4.22 Open Source / OpenClaw		<2026.4.22

CVE-2026-53836

Affected products

Known affected 2 products

Product	Identifier	Version	Remediation
Open Source OpenClaw <2026.5.12 Open Source / OpenClaw		<2026.5.12
Open Source OpenClaw <2026.4.22 Open Source / OpenClaw		<2026.4.22

References

8 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://github.com/advisories/GHSA-P68J-Q8J9-JWF5	external
https://github.com/advisories/GHSA-FFHM-8FWQ-7Q27	external
https://www.vulncheck.com/advisories/openclaw-web…	external
https://www.vulncheck.com/advisories/openclaw-all…	external
https://euvd.enisa.europa.eu/enisa/EUVD-2026-36618	external
https://euvd.enisa.europa.eu/enisa/EUVD-2026-36624	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "OpenClaw ist ein pers\u00f6nlicher KI-Assistent zur Ausf\u00fchrung auf eigenen Ger\u00e4ten.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen und so Daten zu manipulieren oder beliebigen Code auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1913 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1913.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1913 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1913"
      },
      {
        "category": "external",
        "summary": "GitHub Advisory Database vom 2026-06-14",
        "url": "https://github.com/advisories/GHSA-P68J-Q8J9-JWF5"
      },
      {
        "category": "external",
        "summary": "GitHub Advisory Database vom 2026-06-14",
        "url": "https://github.com/advisories/GHSA-FFHM-8FWQ-7Q27"
      },
      {
        "category": "external",
        "summary": "VulnCheck Advisory vom 2026-06-14",
        "url": "https://www.vulncheck.com/advisories/openclaw-webhook-secret-revocation-bypass-via-secrets-reload"
      },
      {
        "category": "external",
        "summary": "VulnCheck Advisory vom 2026-06-14",
        "url": "https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-powershell-encoded-command-aliases"
      },
      {
        "category": "external",
        "summary": "EU Vulnerability Database vom 2026-06-14",
        "url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-36618"
      },
      {
        "category": "external",
        "summary": "EU Vulnerability Database vom 2026-06-14",
        "url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-36624"
      }
    ],
    "source_lang": "en-US",
    "title": "OpenClaw: Mehrere Schwachstellen erm\u00f6glichen die Umgehung von Sicherheitsma\u00dfnahmen",
    "tracking": {
      "current_release_date": "2026-06-14T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-15T09:14:51.717+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1913",
      "initial_release_date": "2026-06-14T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-06-14T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2026.4.22",
                "product": {
                  "name": "Open Source OpenClaw \u003c2026.4.22",
                  "product_id": "T055373"
                }
              },
              {
                "category": "product_version",
                "name": "2026.4.22",
                "product": {
                  "name": "Open Source OpenClaw 2026.4.22",
                  "product_id": "T055373-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openclaw:openclaw:2026.4.22"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2026.5.12",
                "product": {
                  "name": "Open Source OpenClaw \u003c2026.5.12",
                  "product_id": "T055374"
                }
              },
              {
                "category": "product_version",
                "name": "2026.5.12",
                "product": {
                  "name": "Open Source OpenClaw 2026.5.12",
                  "product_id": "T055374-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openclaw:openclaw:2026.5.12"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "OpenClaw"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-53830",
      "product_status": {
        "known_affected": [
          "T055373"
        ]
      },
      "release_date": "2026-06-14T22:00:00.000+00:00",
      "title": "CVE-2026-53830"
    },
    {
      "cve": "CVE-2026-53836",
      "product_status": {
        "known_affected": [
          "T055374",
          "T055373"
        ]
      },
      "release_date": "2026-06-14T22:00:00.000+00:00",
      "title": "CVE-2026-53836"
    }
  ]
}

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.

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.

Action not permitted

CVE-2026-53836 (GCVE-0-2026-53836)

FKIE_CVE-2026-53836

GHSA-FFHM-8FWQ-7Q27

WID-SEC-W-2026-1913

Tags

Sightings

Nomenclature