CVE-2026-31991: Openclaw OpenClaw Has Signal Group Allowlist Vulnerability

LOW
Advisory Identifier: GHSA-wm8r-w8pf-2v6w
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CVSS 3.7
CWE-863
Published
Advisory Summary

CVE-2026-31991 is a LOW (CVSS 3.7) openclaw has signal group allowlist vulnerability (CWE-863: Incorrect Authorization) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw has signal group allowlist authorization bypass via dm pairing-store leakage. Remediation is available by upgrading affected packages to version 2026.2.26.

CVE-2026-31991 at a Glance

CVE Identifier CVE-2026-31991
GHSA Identifier GHSA-wm8r-w8pf-2v6w
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-863: Incorrect Authorization
Affected Product Openclaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

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

How to Fix CVE-2026-31991

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: 2026.2.26 
npm install openclaw@2026.2.26
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-2026-31991, 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 2026.2.26), 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 In OpenClaw `2026.2.25`, Signal group authorization under `groupPolicy=allowlist` could accept sender identities sourced from DM pairing-store approvals. This allowed DM pairing approvals to leak into group allowlist evaluation. ### Impact This is an authorization-boundary weakness between DM pairing and group allowlist controls. A sender approved for DM pairing could pass group checks without explicit group allowlisting. ### Affected Packages / Versions - Package: `openclaw` (npm) - Latest published version affected: `2026.2.25` - Vulnerable range: `<= 2026.2.25` - Patched version (planned next release): `>= 2026.2.26` ### Fix OpenClaw now keeps DM pairing-store entries DM-only and enforces explicit group allowlist boundaries in shared DM/group policy resolution used by Signal and other channels. ### Fix Commit(s) - `8bdda7a651c21e98faccdbbd73081e79cffe8be0` - `64de4b6d6ae81e269ceb4ca16f53cda99ced967a` ### Release Process Note `patched_versions` is pre-set to the planned next release (`2026.2.26`). After npm publish of that version, this advisory is ready to publish without further content edits. Thanks @tdjackey for reporting.

CVE-2026-31991 Affected Openclaw Versions

1 component(s)
Fixed Versions:
2026.2.26
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.2.26
2026.2.26

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-wm8r-w8pf-2v6w
NVD — CVE-2026-31991 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31991
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/64de4b6d6ae81e269ceb4ca16f53cda99ced967a
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/8bdda7a651c21e98faccdbbd73081e79cffe8be0
Openclaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-dm-pairing-store-leakage-in-signal-group-allowlist

Frequently Asked Questions

What is CVE-2026-31991?
CVE-2026-31991 is a security vulnerability in Openclaw involving OpenClaw has Signal group allowlist authorization bypass via DM pairing-store leakage under CWE-863: Incorrect Authorization.
Which Openclaw versions are affected?
Affected versions include releases prior to 2026.2.26 across affected packages: openclaw.
What version fixes CVE-2026-31991?
Upgrading to 2026.2.26 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.2.26. Upgrade your dependency to 2026.2.26 or later.
What is the CVSS score of CVE-2026-31991?
CVE-2026-31991 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2026-31991?
CVE-2026-31991 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-2026-31991?
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-wm8r-w8pf-2v6w",
  "modified" : "2026-03-20T21:36:10Z",
  "published" : "2026-03-02T22:14:56Z",
  "aliases" : [ "CVE-2026-31991" ],
  "summary" : "OpenClaw has Signal group allowlist authorization bypass via DM pairing-store leakage",
  "details" : "### Summary\nIn OpenClaw `2026.2.25`, Signal group authorization under `groupPolicy=allowlist` could accept sender identities sourced from DM pairing-store approvals. This allowed DM pairing approvals to leak into group allowlist evaluation.\n\n### Impact\nThis is an authorization-boundary weakness between DM pairing and group allowlist controls. A sender approved for DM pairing could pass group checks without explicit group allowlisting.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published version affected: `2026.2.25`\n- Vulnerable range: `<= 2026.2.25`\n- Patched version (planned next release): `>= 2026.2.26`\n\n### Fix\nOpenClaw now keeps DM pairing-store entries DM-only and enforces explicit group allowlist boundaries in shared DM/group policy resolution used by Signal and other channels.\n\n### Fix Commit(s)\n- `8bdda7a651c21e98faccdbbd73081e79cffe8be0`\n- `64de4b6d6ae81e269ceb4ca16f53cda99ced967a`\n\n### Release Process Note\n`patched_versions` is pre-set to the planned next release (`2026.2.26`). After npm publish of that version, this advisory is ready to publish without further content edits.\n\nThanks @tdjackey for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.2.26"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-wm8r-w8pf-2v6w"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-31991"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/64de4b6d6ae81e269ceb4ca16f53cda99ced967a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/8bdda7a651c21e98faccdbbd73081e79cffe8be0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-dm-pairing-store-leakage-in-signal-group-allowlist"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-02T22:14:56Z",
    "nvd_published_at" : null
  }
}