Vulnerability-Lookup

CVE-2026-53853 (GCVE-0-2026-53853)

Vulnerability from cvelistv5 – Published: 2026-06-16 18:05 – Updated: 2026-06-18 03:55 X_Open Source

Title

OpenClaw < 2026.5.12 - Argument Pattern Bypass in Exec Allowlist via Linux and macOS

Summary

OpenClaw before 2026.5.12 contains an argument pattern validation bypass in the exec allowlist that allows attackers to execute disallowed arguments for allowlisted executables on Linux and macOS systems. Attackers can bypass configured argPattern restrictions by directly invoking allowlisted executables with unrestricted arguments, potentially enabling unauthorized file access, network access, or command execution.

Severity

7.6 (High)


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

8.3 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-17 00:00 UTC

CWE

CWE-693 - Protection Mechanism Failure
CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

2 references

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

Impacted products

1 product

Vendor	Product	Version	CPE status
OpenClaw	OpenClaw	Affected: 0 , < 2026.5.12 (semver) Unaffected: 2026.5.12 (semver) cpe:2.3:a:openclaw:openclaw::::::node.js::*

Date Public

2026-05-28 00:00

Credits

Curly-Haired-Baboon

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-53853

Vulnerability from fkie_nvd - Published: 2026-06-16 19:17 - Updated: 2026-06-18 04:17

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/openclaw/openclaw/security/advisories/GHSA-v2ww-5rh7-2h5v	Vendor Advisory
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/openclaw-argument-pattern-bypass-in-exec-allowlist-via-linux-and-macos	Third Party Advisory

Impacted products

Vendor	Product	Version
openclaw	openclaw	*
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12
openclaw	openclaw	2026.5.12

JSON

To clipboard

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            },
            {
              "criteria": "cpe:2.3:a:openclaw:openclaw:2026.5.12:beta7:*:*:*:node.js:*:*",
              "matchCriteriaId": "471D48FA-A3F4-4DC0-A46D-16FBAAB9A3BD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openclaw:openclaw:2026.5.12:beta8:*:*:*:node.js:*:*",
              "matchCriteriaId": "2543F40A-7360-496F-9F12-38D9B9B9291A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenClaw before 2026.5.12 contains an argument pattern validation bypass in the exec allowlist that allows attackers to execute disallowed arguments for allowlisted executables on Linux and macOS systems. Attackers can bypass configured argPattern restrictions by directly invoking allowlisted executables with unrestricted arguments, potentially enabling unauthorized file access, network access, or command execution."
    }
  ],
  "id": "CVE-2026-53853",
  "lastModified": "2026-06-18T04:17:01.177",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.5,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53853",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-17T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-16T19:17:02.650",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-v2ww-5rh7-2h5v"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/openclaw-argument-pattern-bypass-in-exec-allowlist-via-linux-and-macos"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-693"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-3V3J-737J-7G74

Vulnerability from github – Published: 2026-06-16 21:31 – Updated: 2026-06-18 20:32

Summary

Duplicate Advisory: Linux and macOS exec allowlists skipped configured argument patterns

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-v2ww-5rh7-2h5v. This link is maintained to preserve external references.

Original Description

Severity

8.3 (High)


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

7.6 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 2026.5.12"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-693"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-18T20:32:42Z",
    "nvd_published_at": "2026-06-16T19:17:02Z",
    "severity": "HIGH"
  },
  "details": "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of\u00a0GHSA-v2ww-5rh7-2h5v. This link is maintained to preserve external references.\n\n## Original Description\nOpenClaw before 2026.5.12 contains an argument pattern validation bypass in the exec allowlist that allows attackers to execute disallowed arguments for allowlisted executables on Linux and macOS systems. Attackers can bypass configured argPattern restrictions by directly invoking allowlisted executables with unrestricted arguments, potentially enabling unauthorized file access, network access, or command execution.",
  "id": "GHSA-3v3j-737j-7g74",
  "modified": "2026-06-18T20:32:42Z",
  "published": "2026-06-16T21:31:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-v2ww-5rh7-2h5v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53853"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-argument-pattern-bypass-in-exec-allowlist-via-linux-and-macos"
    }
  ],
  "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:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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: Linux and macOS exec allowlists skipped configured argument patterns",
  "withdrawn": "2026-06-18T20:32:42Z"
}

GHSA-V2WW-5RH7-2H5V

Vulnerability from github – Published: 2026-06-18 20:33 – Updated: 2026-06-18 20:33

Summary

OpenClaw: Linux and macOS exec allowlists skipped configured argument patterns

Details

Summary

OpenClaw's exec allowlist supported optional argPattern entries to restrict the arguments accepted for an allowlisted executable. In affected releases, Linux and macOS gateways skipped argPattern checks and treated a matching executable path as sufficient to satisfy the allowlist.

This meant an operator could configure an allowlist entry that appeared to permit only a narrow argv shape, but OpenClaw would allow other argv for the same executable without an approval prompt when tools.exec.security was set to allowlist.

This issue is limited to direct enforcement of configured argPattern values. OpenClaw's exec approvals remain best-effort guardrails and do not attempt to semantically model every interpreter, loader, package script, shell feature, or transitive file a command may use.

Affected configurations

This affects OpenClaw gateway deployments that meet all of these conditions:

the gateway runs on Linux or macOS
exec is configured with tools.exec.security: "allowlist"
at least one exec allowlist entry uses argPattern
the allowlisted executable accepts security-relevant arguments or flags

Path-only allowlist entries are not additionally affected by this issue, because those entries intentionally allow any arguments for the matched executable. Windows was not affected by this specific bug because the affected code path already applied argPattern checks on Windows.

Impact

If an untrusted or lower-trust sender can influence a tool-enabled agent to call exec, they may be able to run disallowed arguments for an executable that the operator intended to restrict with argPattern. Depending on the executable, those arguments can cause host-side file access, network access, or command execution that should have required an approval prompt.

The practical impact depends on the operator's allowlist and channel exposure. Examples of higher-risk allowlisted executables include tools with interpreter, loader, subprocess, network, or plugin flags such as git, python, node, bash, find, tar, and ssh.

This is not a bypass of all exec approval semantics. It is a bypass of the direct argPattern predicate that the operator configured and that the exec tool description advertised as enforced at runtime.

Patched Versions

The first stable patched version is 2026.5.12.

Mitigations

Upgrade to openclaw@2026.5.12 or later. Before upgrading, operators who use exec allowlist mode should review entries that combine an executable path with argPattern, especially for interpreter-like or subprocess-capable tools.

Severity

7.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.5.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-53853"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-693",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-18T20:33:22Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\n\nOpenClaw\u0027s exec allowlist supported optional `argPattern` entries to restrict the arguments accepted for an allowlisted executable. In affected releases, Linux and macOS gateways skipped `argPattern` checks and treated a matching executable path as sufficient to satisfy the allowlist.\n\nThis meant an operator could configure an allowlist entry that appeared to permit only a narrow argv shape, but OpenClaw would allow other argv for the same executable without an approval prompt when `tools.exec.security` was set to `allowlist`.\n\nThis issue is limited to direct enforcement of configured `argPattern` values. OpenClaw\u0027s exec approvals remain best-effort guardrails and do not attempt to semantically model every interpreter, loader, package script, shell feature, or transitive file a command may use.\n\n### Affected configurations\n\nThis affects OpenClaw gateway deployments that meet all of these conditions:\n\n- the gateway runs on Linux or macOS\n- exec is configured with `tools.exec.security: \"allowlist\"`\n- at least one exec allowlist entry uses `argPattern`\n- the allowlisted executable accepts security-relevant arguments or flags\n\nPath-only allowlist entries are not additionally affected by this issue, because those entries intentionally allow any arguments for the matched executable. Windows was not affected by this specific bug because the affected code path already applied `argPattern` checks on Windows.\n\n### Impact\n\nIf an untrusted or lower-trust sender can influence a tool-enabled agent to call exec, they may be able to run disallowed arguments for an executable that the operator intended to restrict with `argPattern`. Depending on the executable, those arguments can cause host-side file access, network access, or command execution that should have required an approval prompt.\n\nThe practical impact depends on the operator\u0027s allowlist and channel exposure. Examples of higher-risk allowlisted executables include tools with interpreter, loader, subprocess, network, or plugin flags such as `git`, `python`, `node`, `bash`, `find`, `tar`, and `ssh`.\n\nThis is not a bypass of all exec approval semantics. It is a bypass of the direct `argPattern` predicate that the operator configured and that the exec tool description advertised as enforced at runtime.\n\n### Patched Versions\n\nThe first stable patched version is `2026.5.12`.\n\n### Mitigations\n\nUpgrade to `openclaw@2026.5.12` or later. Before upgrading, operators who use exec allowlist mode should review entries that combine an executable path with `argPattern`, especially for interpreter-like or subprocess-capable tools.",
  "id": "GHSA-v2ww-5rh7-2h5v",
  "modified": "2026-06-18T20:33:22Z",
  "published": "2026-06-18T20:33:22Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-v2ww-5rh7-2h5v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53853"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-argument-pattern-bypass-in-exec-allowlist-via-linux-and-macos"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenClaw: Linux and macOS exec allowlists skipped configured argument patterns"
}

WID-SEC-W-2026-1738

Vulnerability from csaf_certbund - Published: 2026-05-28 22:00 - Updated: 2026-06-16 22:00

Summary

OpenClaw: Mehrere Schwachstellen

Severity

Hoch

Scope

64 vulnerabilities in this advisory, including CVE-2026-53853.

CVE-2026-53853

Known affected: 1 product

Open the full advisory

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.
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.

Action not permitted

CVE-2026-53853 (GCVE-0-2026-53853)

FKIE_CVE-2026-53853

GHSA-3V3J-737J-7G74

Duplicate Advisory

Original Description

GHSA-V2WW-5RH7-2H5V

Summary

Affected configurations

Impact

Patched Versions

Mitigations

WID-SEC-W-2026-1738

Tags

Sightings

Nomenclature