Vulnerability-Lookup

GHSA-9P3R-HH9G-5CMG

Vulnerability from github – Published: 2026-04-03 03:14 – Updated: 2026-04-20 23:44

Summary

OpenClaw: Sandbox escape via TOCTOU race in remote FS bridge readFile

Details

Summary

Sandbox escape via TOCTOU race in remote FS bridge readFile

Current Maintainer Triage

Normalized severity: critical
Assessment: v2026.3.28 remote sandbox reads still do path-check then separate file read, so the TOCTOU sandbox escape remains present in the latest shipped tag.

Affected Packages / Versions

Package: openclaw (npm)
Latest published npm version: 2026.3.31
Vulnerable version range: <=2026.3.28
Patched versions: >= 2026.3.31
First stable tag containing the fix: v2026.3.31

Fix Commit(s)

121870a08583033ed6a0ed73d9ffea32991252bb — 2026-03-31T09:55:51+09:00

OpenClaw thanks @AntAISecurityLab for reporting.

Severity ?

9.4 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2026.3.28"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.31"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-41296"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-03T03:14:16Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "## Summary\nSandbox escape via TOCTOU race in remote FS bridge readFile\n\n## Current Maintainer Triage\n- Normalized severity: critical\n- Assessment: v2026.3.28 remote sandbox reads still do path-check then separate file read, so the TOCTOU sandbox escape remains present in the latest shipped tag.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `121870a08583033ed6a0ed73d9ffea32991252bb` \u2014 2026-03-31T09:55:51+09:00\n\nOpenClaw thanks @AntAISecurityLab for reporting.",
  "id": "GHSA-9p3r-hh9g-5cmg",
  "modified": "2026-04-20T23:44:20Z",
  "published": "2026-04-03T03:14:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-9p3r-hh9g-5cmg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/121870a08583033ed6a0ed73d9ffea32991252bb"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/releases/tag/v2026.3.31"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: Sandbox escape via TOCTOU race in remote FS bridge readFile"
}

CVE-2026-41296 (GCVE-0-2026-41296)

Vulnerability from cvelistv5 – Published: 2026-04-20 23:08 – Updated: 2026-04-21 19:49 X_Open Source

Title

OpenClaw < 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile

Summary

OpenClaw before 2026.3.31 contains a time-of-check-time-of-use race condition in the remote filesystem bridge readFile function that allows sandbox escape. Attackers can exploit the separate path validation and file read operations to bypass sandbox restrictions and read arbitrary files.

Severity ?

8.8 (High)


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

8.2 (High)


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

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

VulnCheck

References

URL

Tags

	https://github.com/openclaw/openclaw/security/adv…	vendor-advisory
	https://github.com/openclaw/openclaw/commit/12187…	patch
	https://www.vulncheck.com/advisories/openclaw-san…	third-party-advisory

Impacted products

	Vendor	Product	Version
	OpenClaw	OpenClaw	Affected: 0 , < 2026.3.31 (semver) Unaffected: 2026.3.31 (semver)

Date Public ?

2026-03-31 00:00

Credits

AntAISecurityLab

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41296",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-21T16:02:53.746478Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-21T19:49:41.570Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/openclaw",
          "product": "OpenClaw",
          "vendor": "OpenClaw",
          "versions": [
            {
              "lessThan": "2026.3.31",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2026.3.31",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*",
                  "versionEndExcluding": "2026.3.31",
                  "vulnerable": true
                }
              ],
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "AntAISecurityLab"
        }
      ],
      "datePublic": "2026-03-31T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenClaw before 2026.3.31 contains a time-of-check-time-of-use race condition in the remote filesystem bridge readFile function that allows sandbox escape. Attackers can exploit the separate path validation and file read operations to bypass sandbox restrictions and read arbitrary files."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-20T23:08:10.194Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-9p3r-hh9g-5cmg)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-9p3r-hh9g-5cmg"
        },
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/openclaw/openclaw/commit/121870a08583033ed6a0ed73d9ffea32991252bb"
        },
        {
          "name": "VulnCheck Advisory: OpenClaw \u003c 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-toctou-race-in-remote-fs-bridge-readfile"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "title": "OpenClaw \u003c 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-41296",
    "datePublished": "2026-04-20T23:08:10.194Z",
    "dateReserved": "2026-04-20T14:01:13.151Z",
    "dateUpdated": "2026-04-21T19:49:41.570Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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-9P3R-HH9G-5CMG

Summary

Current Maintainer Triage

Affected Packages / Versions

Fix Commit(s)

CVE-2026-41296 (GCVE-0-2026-41296)

Tags

Sightings

Nomenclature