Vulnerability-Lookup

GHSA-8883-9W57-VWV6

Vulnerability from github – Published: 2026-03-26 21:23 – Updated: 2026-04-10 19:41

Summary

OpenClaw: Mattermost callback dispatch allowed non-allowlisted sender actions

Details

Summary

Mattermost interactive callback dispatch could run action handlers before normal sender authorization checks completed.

Affected Packages / Versions

Package: openclaw (npm)
Affected: < 2026.3.22
Fixed: >= 2026.3.22
Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

extensions/mattermost/src/mattermost/interactions.ts now requires callback authorization before dispatching actions.
extensions/mattermost/src/mattermost/monitor.ts routes callback authorization through the same sender and allowlist policy used for normal ingress.

OpenClaw thanks @zpbrent for reporting.

Severity ?

6.5 (Medium)


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

6.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35652"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-285",
      "CWE-696",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-26T21:23:04Z",
    "nvd_published_at": "2026-04-10T17:17:05Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\nMattermost interactive callback dispatch could run action handlers before normal sender authorization checks completed.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: \u003c 2026.3.22\n- Fixed: \u003e= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- extensions/mattermost/src/mattermost/interactions.ts now requires callback authorization before dispatching actions.\n- extensions/mattermost/src/mattermost/monitor.ts routes callback authorization through the same sender and allowlist policy used for normal ingress.\n\nOpenClaw thanks @zpbrent for reporting.",
  "id": "GHSA-8883-9w57-vwv6",
  "modified": "2026-04-10T19:41:54Z",
  "published": "2026-03-26T21:23:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-8883-9w57-vwv6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35652"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-unauthorized-action-execution-via-callback-dispatch"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: Mattermost callback dispatch allowed non-allowlisted sender actions"
}

CVE-2026-35652 (GCVE-0-2026-35652)

Vulnerability from cvelistv5 – Published: 2026-04-10 16:03 – Updated: 2026-04-14 14:55 X_Open Source

Title

OpenClaw < 2026.3.22 - Unauthorized Action Execution via Callback Dispatch

Summary

OpenClaw before 2026.3.22 contains an authorization bypass vulnerability in interactive callback dispatch that allows non-allowlisted senders to execute action handlers. Attackers can bypass sender authorization checks by dispatching callbacks before normal security validation completes, enabling unauthorized actions.

Severity ?

6.9 (Medium)


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

6.5 (Medium)


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

CWE

CWE-696 - Incorrect Behavior Order

Assigner

VulnCheck

References

URL

Tags

	https://github.com/openclaw/openclaw/security/adv…	third-party-advisory
	https://github.com/openclaw/openclaw/commit/630f1…	patch
	https://github.com/openclaw/openclaw/commit/a4772…	patch
	https://www.vulncheck.com/advisories/openclaw-una…	third-party-advisory

Impacted products

	Vendor	Product	Version
	OpenClaw	OpenClaw	Affected: 0 , < 2026.3.22 (semver) Unaffected: 2026.3.22 (semver)

Date Public ?

2026-03-24 00:00

Credits

Peng Zhou (@zpbrent)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35652",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-14T14:54:51.594031Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-14T14:55:03.900Z",
          "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": "2026.3.22",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2026.3.22",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*",
                  "versionEndExcluding": "2026.3.22",
                  "vulnerable": true
                }
              ],
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Peng Zhou (@zpbrent)"
        }
      ],
      "datePublic": "2026-03-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenClaw before 2026.3.22 contains an authorization bypass vulnerability in interactive callback dispatch that allows non-allowlisted senders to execute action handlers. Attackers can bypass sender authorization checks by dispatching callbacks before normal security validation completes, enabling unauthorized actions."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-696",
              "description": "CWE-696: Incorrect Behavior Order",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-10T16:03:15.676Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-8883-9w57-vwv6)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-8883-9w57-vwv6"
        },
        {
          "name": "Patch Commit #1",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"
        },
        {
          "name": "Patch Commit #2",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66"
        },
        {
          "name": "VulnCheck Advisory: OpenClaw \u003c 2026.3.22 - Unauthorized Action Execution via Callback Dispatch",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/openclaw-unauthorized-action-execution-via-callback-dispatch"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "title": "OpenClaw \u003c 2026.3.22 - Unauthorized Action Execution via Callback Dispatch",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-35652",
    "datePublished": "2026-04-10T16:03:15.676Z",
    "dateReserved": "2026-04-04T12:31:23.534Z",
    "dateUpdated": "2026-04-14T14:55:03.900Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-8883-9W57-VWV6

Summary

Affected Packages / Versions

Fix Commit(s)

Release Status

Code-Level Confirmation

CVE-2026-35652 (GCVE-0-2026-35652)

Tags

Sightings

Nomenclature