GHSA-h656-5vcf-cm23: OpenClaw Unauthorized Telegram Senders Trigger Media Vulnerability

MODERATE
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CWE-406 CWE-404 CWE-770 CWE-208
Published
Advisory Summary

GHSA-h656-5vcf-cm23 is a MODERATE unauthorized telegram senders trigger media vulnerability (CWE-406: Insufficient Control of Network Message Volume (Network Amplification)) affecting OpenClaw libraries in the npm ecosystem. The issue involves unauthorized telegram senders trigger media download and disk write before access check. Remediation is available by upgrading affected packages to version 2026.2.24.

GHSA-h656-5vcf-cm23 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-h656-5vcf-cm23
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-406: Insufficient Control of Network Message Volume (Network Amplification)
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-h656-5vcf-cm23

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: 2026.2.24 
npm install openclaw@2026.2.24
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-h656-5vcf-cm23, 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 2026.2.24), 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-406: Insufficient Control of Network Message Volume (Network Amplification), where the product does not sufficiently monitor or control transmitted network traffic volume, so that an actor can cause the product to transmit more traffic than should be allowed for that actor. 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

## Impact In Telegram DM mode, inbound media was downloaded and written to disk before sender authorization checks completed. An unauthorized sender could trigger inbound media download/write activity (including media groups) even when DM access should be denied. ## Affected Packages / Versions - Package: `openclaw` (npm) - Latest published version currently affected: `2026.2.23` - Vulnerable range: `<= 2026.2.23` - Patched in planned next release: `2026.2.24` ## Fix Commit(s) - `9514201fb9b51de5d0b23151110d0ff5d9c8bd67` ## Technical Details The Telegram handler flow now enforces DM authorization before media download/write paths execute, including media-group handling. Inbound channel activity tracking was also moved to run after DM authorization in the Telegram message context path. ## Release Process Note `patched_versions` is pre-set to the planned next release (`2026.2.24`). After npm publish, the advisory can be published without further version-field edits. OpenClaw thanks @v8hid for reporting. ### Publication Update (2026-02-25) `openclaw@2026.2.24` is published on npm and contains the fix commit(s) listed above. This advisory now marks `>= 2026.2.24` as patched.

GHSA-h656-5vcf-cm23 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.2.24
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.2.24
2026.2.24

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-h656-5vcf-cm23
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/9514201fb9b51de5d0b23151110d0ff5d9c8bd67
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw

Frequently Asked Questions

What is GHSA-h656-5vcf-cm23?
GHSA-h656-5vcf-cm23 is a security vulnerability in OpenClaw involving Unauthorized Telegram Senders Trigger Media Download and Disk Write Before Access Check under CWE-406: Insufficient Control of Network Message Volume (Network Amplification).
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.2.24 across affected packages: openclaw.
What version fixes GHSA-h656-5vcf-cm23?
Upgrading to 2026.2.24 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.2.24. Upgrade your dependency to 2026.2.24 or later.
What CWE is associated with GHSA-h656-5vcf-cm23?
GHSA-h656-5vcf-cm23 is classified under CWE-406: Insufficient Control of Network Message Volume (Network Amplification) (The product does not sufficiently monitor or control transmitted network traffic volume, so that an actor can cause the product to transmit more traffic than should be allowed for that actor.).
How can I check npm dependencies for GHSA-h656-5vcf-cm23?
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-h656-5vcf-cm23",
  "modified" : "2026-03-03T19:08:30Z",
  "published" : "2026-03-03T19:08:30Z",
  "aliases" : [ ],
  "summary" : "OpenClaw: Unauthorized Telegram Senders Trigger Media Download and Disk Write Before Access Check",
  "details" : "## Impact\n\nIn Telegram DM mode, inbound media was downloaded and written to disk before sender authorization checks completed. An unauthorized sender could trigger inbound media download/write activity (including media groups) even when DM access should be denied.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Latest published version currently affected: `2026.2.23`\n- Vulnerable range: `<= 2026.2.23`\n- Patched in planned next release: `2026.2.24`\n\n## Fix Commit(s)\n\n- `9514201fb9b51de5d0b23151110d0ff5d9c8bd67`\n\n## Technical Details\n\nThe Telegram handler flow now enforces DM authorization before media download/write paths execute, including media-group handling. Inbound channel activity tracking was also moved to run after DM authorization in the Telegram message context path.\n\n## Release Process Note\n\n`patched_versions` is pre-set to the planned next release (`2026.2.24`). After npm publish, the advisory can be published without further version-field edits.\n\nOpenClaw thanks @v8hid for reporting.\n\n\n### Publication Update (2026-02-25)\n`openclaw@2026.2.24` is published on npm and contains the fix commit(s) listed above. This advisory now marks `>= 2026.2.24` as patched.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.2.24"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.2.23"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-h656-5vcf-cm23"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/9514201fb9b51de5d0b23151110d0ff5d9c8bd67"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-208", "CWE-404", "CWE-406", "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-03T19:08:30Z",
    "nvd_published_at" : null
  }
}