GHSA-xgwg-m42c-8q62: Duplicate Advisory OpenClaw: Slack System Events Bypass Vulnerability

MODERATE
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CVSS 5.4
CWE-863
Published
Advisory Summary

GHSA-xgwg-m42c-8q62 is a MODERATE (CVSS 5.4) openclaw: slack system events bypass vulnerability (CWE-863: Incorrect Authorization) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves openclaw: slack system events bypass sender authorization in member and message subtype handlers. Remediation is available in the latest vendor maintenance releases.

GHSA-xgwg-m42c-8q62 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-xgwg-m42c-8q62
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-863: Incorrect Authorization
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-xgwg-m42c-8q62

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openclaw fixed: Latest secure release 
npm install openclaw@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls openclaw

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-xgwg-m42c-8q62, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-v8cg-4474-49v8. This link is maintained to preserve external references. ## Original Description OpenClaw versions prior to 2026.2.26 fail to enforce sender authorization in member and message subtype system event handlers, allowing unauthorized events to be enqueued. Attackers can bypass Slack DM allowlists and per-channel user allowlists by sending system events from non-allowlisted senders through message_changed, message_deleted, and thread_broadcast events.

GHSA-xgwg-m42c-8q62 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
≤ 2026.2.25

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8
NVD — GHSA-xgwg-m42c-8q62 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32895
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-sender-authorization-bypass-in-slack-system-event-handlers

Frequently Asked Questions

What is GHSA-xgwg-m42c-8q62?
GHSA-xgwg-m42c-8q62 is a security vulnerability in Duplicate Advisory involving OpenClaw: Slack system events bypass sender authorization in member and message subtype handlers under CWE-863: Incorrect Authorization.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: openclaw.
What version fixes GHSA-xgwg-m42c-8q62?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-xgwg-m42c-8q62?
GHSA-xgwg-m42c-8q62 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with GHSA-xgwg-m42c-8q62?
GHSA-xgwg-m42c-8q62 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check npm dependencies for GHSA-xgwg-m42c-8q62?
Run the dependency tree command: 'npm ls openclaw'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xgwg-m42c-8q62",
  "modified" : "2026-03-24T19:06:23Z",
  "published" : "2026-03-21T03:31:14Z",
  "withdrawn" : "2026-03-24T19:06:23Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: OpenClaw: Slack system events bypass sender authorization in member and message subtype handlers",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-v8cg-4474-49v8. This link is maintained to preserve external references.\n\n## Original Description\nOpenClaw versions prior to 2026.2.26 fail to enforce sender authorization in member and message subtype system event handlers, allowing unauthorized events to be enqueued. Attackers can bypass Slack DM allowlists and per-channel user allowlists by sending system events from non-allowlisted senders through message_changed, message_deleted, and thread_broadcast events.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2026.2.25"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32895"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-sender-authorization-bypass-in-slack-system-event-handlers"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-24T19:06:23Z",
    "nvd_published_at" : "2026-03-21T01:17:10Z"
  }
}