CVE-2026-22217: OpenClaw Shell-env Trusted-prefix Fallback Allowed Attacker-controlled Vulnerability

MODERATE
Advisory Identifier: GHSA-p4wh-cr8m-gm6c
CVSS 6.1
CWE-829 CWE-184
Published
Advisory Summary

CVE-2026-22217 is a MODERATE (CVSS 6.1) shell-env trusted-prefix fallback allowed attacker-controlled vulnerability (CWE-829: Inclusion of Functionality from Untrusted Control Sphere) affecting OpenClaw libraries in the npm ecosystem. The issue involves shell-env trusted-prefix fallback allowed attacker-controlled binary execution via $shell. Remediation is available by upgrading affected packages to version 2026.2.23.

CVE-2026-22217 at a Glance

CVE Identifier CVE-2026-22217
GHSA Identifier GHSA-p4wh-cr8m-gm6c
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-829: Inclusion of Functionality from Untrusted Control Sphere
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.1

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

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

How to Fix CVE-2026-22217

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: 2026.2.23
npm install openclaw@2026.2.23
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-2026-22217, 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 2026.2.23), 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-829: Inclusion of Functionality from Untrusted Control Sphere, where the product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. 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 `shell-env` fallback trusted prefix-based executable paths for `$SHELL`, allowing execution of attacker-controlled binaries in local/runtime-env influence scenarios. ### Details In affected versions, shell selection accepted either: 1. a shell listed in `/etc/shells`, or 2. any executable under hardcoded trusted prefixes (`/bin`, `/usr/bin`, `/usr/local/bin`, `/opt/homebrew/bin`, `/run/current-system/sw/bin`). The selected shell was then executed as a login shell (`-l -c 'env -0'`) for PATH/environment probing. On systems where a trusted-prefix directory is writable (for example common Homebrew layouts under `/opt/homebrew/bin`) and runtime `$SHELL` can be influenced, this enabled attacker-controlled binary execution in OpenClaw process context. The fix removes the trusted-prefix executable fallback and now trusts only shells explicitly registered in `/etc/shells`; otherwise it falls back to `/bin/sh`. ### Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `>= 2026.2.22, <= 2026.2.22-2` - Latest published vulnerable version: `2026.2.22-2` - Patched versions (released): `>= 2026.2.23` ### Fix Commit(s) - `ff10fe8b91670044a6bb0cd85deb736a0ec8fb55` ### Release Process Note This advisory sets `patched_versions` to the released version (`2026.2.23`). This advisory now reflects released fix version `2026.2.23`. OpenClaw thanks @tdjackey for reporting.

CVE-2026-22217 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.2.23
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm
≥ 2026.2.22
< 2026.2.23
2026.2.23

References

Frequently Asked Questions

What is CVE-2026-22217?
CVE-2026-22217 is a security vulnerability in OpenClaw involving shell-env trusted-prefix fallback allowed attacker-controlled binary execution via $SHELL under CWE-829: Inclusion of Functionality from Untrusted Control Sphere.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.2.23 across affected packages: openclaw.
What version fixes CVE-2026-22217?
Upgrading to 2026.2.23 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.2.23. Upgrade your dependency to 2026.2.23 or later.
What is the CVSS score of CVE-2026-22217?
CVE-2026-22217 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
What CWE is associated with CVE-2026-22217?
CVE-2026-22217 is classified under CWE-829: Inclusion of Functionality from Untrusted Control Sphere (The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.).
How can I check npm dependencies for CVE-2026-22217?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-p4wh-cr8m-gm6c",
  "modified" : "2026-06-08T23:24:01Z",
  "published" : "2026-03-03T21:36:16Z",
  "aliases" : [ "CVE-2026-22217" ],
  "summary" : "OpenClaw: shell-env trusted-prefix fallback allowed attacker-controlled binary execution via $SHELL",
  "details" : "### Summary\n`shell-env` fallback trusted prefix-based executable paths for `$SHELL`, allowing execution of attacker-controlled binaries in local/runtime-env influence scenarios.\n\n### Details\nIn affected versions, shell selection accepted either:\n1. a shell listed in `/etc/shells`, or\n2. any executable under hardcoded trusted prefixes (`/bin`, `/usr/bin`, `/usr/local/bin`, `/opt/homebrew/bin`, `/run/current-system/sw/bin`).\n\nThe selected shell was then executed as a login shell (`-l -c 'env -0'`) for PATH/environment probing.\n\nOn systems where a trusted-prefix directory is writable (for example common Homebrew layouts under `/opt/homebrew/bin`) and runtime `$SHELL` can be influenced, this enabled attacker-controlled binary execution in OpenClaw process context.\n\nThe fix removes the trusted-prefix executable fallback and now trusts only shells explicitly registered in `/etc/shells`; otherwise it falls back to `/bin/sh`.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `>= 2026.2.22, <= 2026.2.22-2`\n- Latest published vulnerable version: `2026.2.22-2`\n- Patched versions (released): `>= 2026.2.23`\n\n### Fix Commit(s)\n- `ff10fe8b91670044a6bb0cd85deb736a0ec8fb55`\n\n### Release Process Note\nThis advisory sets `patched_versions` to the released version (`2026.2.23`).\nThis advisory now reflects released fix version `2026.2.23`.\n\nOpenClaw thanks @tdjackey for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2026.2.22"
      }, {
        "fixed" : "2026.2.23"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-p4wh-cr8m-gm6c"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-22217"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/ff10fe8b91670044a6bb0cd85deb736a0ec8fb55"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-arbitrary-binary-execution-via-shell-environment-variable-trusted-prefix-fallback"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-184", "CWE-829" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-03T21:36:16Z",
    "nvd_published_at" : "2026-03-18T02:16:23Z"
  }
}