GHSA-77hf-7fqf-f227: OpenClaw skills-install-download Denial of Service Vulnerability

MODERATE
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CVSS 5.5
CWE-409 CWE-400
Published
Advisory Summary

GHSA-77hf-7fqf-f227 is a MODERATE (CVSS 5.5) denial of service vulnerability (CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)) affecting OpenClaw skills-install-download libraries in the npm ecosystem. The issue involves tar.bz2 extraction bypassed archive safety parity checks (local dos). Remediation is available by upgrading affected packages to version 2026.3.2.

GHSA-77hf-7fqf-f227 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-77hf-7fqf-f227
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
Affected Product OpenClaw skills-install-download
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.5

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

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

How to Fix GHSA-77hf-7fqf-f227

To remediate this vulnerability, upgrade all affected OpenClaw skills-install-download 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: 2026.3.2 
npm install openclaw@2026.3.2
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-77hf-7fqf-f227, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of OpenClaw skills-install-download in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.3.2), 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-409: Improper Handling of Highly Compressed Data (Data Amplification), where the product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. In OpenClaw skills-install-download, 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 The `tar.bz2` installer path in `src/agents/skills-install-download.ts` used shell tar preflight/extract logic that did not share the same hardening guarantees as the centralized archive extractor. This allowed crafted `.tar.bz2` archives to bypass special-entry blocking and extracted-size guardrails enforced on other archive paths, causing local availability impact during skill install. ### Affected Packages / Versions - Package: `openclaw` (npm) - Latest published at triage time: `2026.3.1` - Affected range: `<= 2026.3.1` - Patched in: `2026.3.2` (released) ### Impact Local DoS / availability impact when processing untrusted `.tar.bz2` skill archives. ### Fix Commit(s) - `0dbb92dd2bcf9a32379d11c0f11ed016669dae3e` ### Related advisories - Canonical overlap (closed): GHSA-3pj7-x8jr-jvj8 - Duplicate variant (closed): GHSA-rgr7-g85h-6v82

GHSA-77hf-7fqf-f227 Affected OpenClaw skills-install-download Versions

1 component(s)
Fixed Versions:
2026.3.2
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.3.2
2026.3.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-77hf-7fqf-f227
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/0dbb92dd2bcf9a32379d11c0f11ed016669dae3e
OpenClaw skills-install-download Source Repository REPOSITORY
https://github.com/openclaw/openclaw

Frequently Asked Questions

What is GHSA-77hf-7fqf-f227?
GHSA-77hf-7fqf-f227 is a security vulnerability in OpenClaw skills-install-download involving tar.bz2 extraction bypassed archive safety parity checks (local DoS) under CWE-409: Improper Handling of Highly Compressed Data (Data Amplification).
Which OpenClaw skills-install-download versions are affected?
Affected versions include releases prior to 2026.3.2 across affected packages: openclaw.
What version fixes GHSA-77hf-7fqf-f227?
Upgrading to 2026.3.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.3.2. Upgrade your dependency to 2026.3.2 or later.
What is the CVSS score of GHSA-77hf-7fqf-f227?
GHSA-77hf-7fqf-f227 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
What CWE is associated with GHSA-77hf-7fqf-f227?
GHSA-77hf-7fqf-f227 is classified under CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) (The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.).
How can I check npm dependencies for GHSA-77hf-7fqf-f227?
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-77hf-7fqf-f227",
  "modified" : "2026-03-03T21:32:36Z",
  "published" : "2026-03-03T21:32:35Z",
  "aliases" : [ ],
  "summary" : "OpenClaw skills-install-download: tar.bz2 extraction bypassed archive safety parity checks (local DoS)",
  "details" : "### Summary\nThe `tar.bz2` installer path in `src/agents/skills-install-download.ts` used shell tar preflight/extract logic that did not share the same hardening guarantees as the centralized archive extractor.\n\nThis allowed crafted `.tar.bz2` archives to bypass special-entry blocking and extracted-size guardrails enforced on other archive paths, causing local availability impact during skill install.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published at triage time: `2026.3.1`\n- Affected range: `<= 2026.3.1`\n- Patched in: `2026.3.2` (released)\n\n### Impact\nLocal DoS / availability impact when processing untrusted `.tar.bz2` skill archives.\n\n### Fix Commit(s)\n- `0dbb92dd2bcf9a32379d11c0f11ed016669dae3e`\n\n### Related advisories\n- Canonical overlap (closed): GHSA-3pj7-x8jr-jvj8\n- Duplicate variant (closed): GHSA-rgr7-g85h-6v82",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.3.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.3.1"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-77hf-7fqf-f227"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/0dbb92dd2bcf9a32379d11c0f11ed016669dae3e"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-409" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-03T21:32:35Z",
    "nvd_published_at" : null
  }
}