CVE-2026-41365: OpenClaw MSTeams Thread History Bypasses Sender Vulnerability

LOW
Advisory Identifier: GHSA-chfm-xgc4-47rj
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CWE-863
Published
Advisory Summary

CVE-2026-41365 is a LOW msteams thread history bypasses sender vulnerability (CWE-863: Incorrect Authorization) affecting OpenClaw libraries in the npm ecosystem. The issue involves msteams thread history bypasses sender allowlist via graph api. Remediation is available by upgrading affected packages to version 2026.3.31.

CVE-2026-41365 at a Glance

CVE Identifier CVE-2026-41365
GHSA Identifier GHSA-chfm-xgc4-47rj
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-863: Incorrect Authorization
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-41365

To remediate this vulnerability, upgrade all affected OpenClaw 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: 2026.3.31 
npm install openclaw@2026.3.31
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 CVE-2026-41365, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of OpenClaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.3.31), 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 OpenClaw, 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

## Summary MSTeams thread history bypasses sender allowlist via Graph API ## Current Maintainer Triage - Status: open - Normalized severity: medium - Assessment: Real in shipped v2026.3.28 MS Teams because Graph-fetched thread history bypasses sender allowlists, with unreleased mainline filtering fix. ## 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) - `5cca38084074fb5095aa11b6a59820d63e4937c9` — 2026-03-30T15:38:26+01:00 OpenClaw thanks @AntAISecurityLab for reporting.

CVE-2026-41365 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.3.31
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.3.31
2026.3.31

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-chfm-xgc4-47rj
NVD — CVE-2026-41365 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41365
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/5cca38084074fb5095aa11b6a59820d63e4937c9
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
OpenClaw Release RELEASE
https://github.com/openclaw/openclaw/releases/tag/v2026.3.31
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-via-graph-api-thread-history

Frequently Asked Questions

What is CVE-2026-41365?
CVE-2026-41365 is a security vulnerability in OpenClaw involving MSTeams thread history bypasses sender allowlist via Graph API under CWE-863: Incorrect Authorization.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.3.31 across affected packages: openclaw.
What version fixes CVE-2026-41365?
Upgrading to 2026.3.31 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.3.31. Upgrade your dependency to 2026.3.31 or later.
What CWE is associated with CVE-2026-41365?
CVE-2026-41365 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 CVE-2026-41365?
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-chfm-xgc4-47rj",
  "modified" : "2026-05-08T14:31:59Z",
  "published" : "2026-04-02T21:01:28Z",
  "aliases" : [ "CVE-2026-41365" ],
  "summary" : "OpenClaw: MSTeams thread history bypasses sender allowlist via Graph API",
  "details" : "## Summary\nMSTeams thread history bypasses sender allowlist via Graph API\n\n## Current Maintainer Triage\n- Status: open\n- Normalized severity: medium\n- Assessment: Real in shipped v2026.3.28 MS Teams because Graph-fetched thread history bypasses sender allowlists, with unreleased mainline filtering fix.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `<=2026.3.28`\n- Patched versions: `>= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `5cca38084074fb5095aa11b6a59820d63e4937c9` — 2026-03-30T15:38:26+01:00\n\nOpenClaw thanks @AntAISecurityLab for reporting.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.3.31"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.3.28"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-chfm-xgc4-47rj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-41365"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/5cca38084074fb5095aa11b6a59820d63e4937c9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/releases/tag/v2026.3.31"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-via-graph-api-thread-history"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-02T21:01:28Z",
    "nvd_published_at" : null
  }
}