CVE-2026-28479: Openclaw OpenClaw Replaced A Deprecated Sandbox Vulnerability

HIGH
Advisory Identifier: GHSA-fh3f-q9qw-93j9
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CVSS 5.4
CWE-327 CWE-328
Published
Advisory Summary

CVE-2026-28479 is a HIGH (CVSS 5.4) openclaw replaced a deprecated sandbox vulnerability (CWE-327: Use of a Broken or Risky Cryptographic Algorithm) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw replaced a deprecated sandbox hash algorithm. Remediation is available by upgrading affected packages to version 2026.2.15.

CVE-2026-28479 at a Glance

CVE Identifier CVE-2026-28479
GHSA Identifier GHSA-fh3f-q9qw-93j9
Severity HIGH
CVSS v3.1 Base Score 5.4
CWE Classification CWE-327: Use of a Broken or Risky Cryptographic Algorithm
Affected Product Openclaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.4

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

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

How to Fix CVE-2026-28479

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: 2026.2.15 
npm install openclaw@2026.2.15
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-2026-28479, 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 2026.2.15), 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-327: Use of a Broken or Risky Cryptographic Algorithm, where the product uses a broken or risky cryptographic algorithm or protocol. 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

## Affected Packages / Versions - npm package: `openclaw` - Affected versions: `<= 2026.2.14` - Fixed version (pre-set): `2026.2.15` ## Description The sandbox identifier cache key for Docker/browser sandbox configuration used SHA-1 to hash normalized configuration payloads. SHA-1 is deprecated for cryptographic use and has known collision weaknesses. In this code path, deterministic IDs are used to decide whether an existing sandbox container can be reused safely. A collision in this hash could let one configuration be interpreted as another under the same sandbox cache identity, increasing the risk of cache poisoning and unsafe sandbox state reuse. The implementation now uses SHA-256 for these deterministic hashes to restore collision resistance for this security-relevant identifier path. ## Fix Commit(s) - `559c8d993` ## Release Process Note `patched_versions` is pre-set to `2026.2.15` for the next release. After that release is published, mark this advisory ready for publication. Thanks @kexinoh ( of Tencent zhuque Lab, by https://github.com/Tencent/AI-Infra-Guard) for reporting.

CVE-2026-28479 Affected Openclaw Versions

1 component(s)
Fixed Versions:
2026.2.15
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.2.15
2026.2.15

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-fh3f-q9qw-93j9
NVD — CVE-2026-28479 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28479
Openclaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/559c8d9930eebb5356506ff1a8cd3dbaec92be77
Openclaw Release RELEASE
https://github.com/openclaw/openclaw/releases/tag/v2026.2.15
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-cache-poisoning-via-deprecated-sha-hash-in-sandbox-configuration

Frequently Asked Questions

What is CVE-2026-28479?
CVE-2026-28479 is a security vulnerability in Openclaw involving OpenClaw replaced a deprecated sandbox hash algorithm under CWE-327: Use of a Broken or Risky Cryptographic Algorithm.
Which Openclaw versions are affected?
Affected versions include releases prior to 2026.2.15 across affected packages: openclaw.
What version fixes CVE-2026-28479?
Upgrading to 2026.2.15 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.2.15. Upgrade your dependency to 2026.2.15 or later.
What is the CVSS score of CVE-2026-28479?
CVE-2026-28479 has a CVSS v3.1 base score of 5.4 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2026-28479?
CVE-2026-28479 is classified under CWE-327: Use of a Broken or Risky Cryptographic Algorithm (The product uses a broken or risky cryptographic algorithm or protocol.).
How can I check npm dependencies for CVE-2026-28479?
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-fh3f-q9qw-93j9",
  "modified" : "2026-03-06T01:04:59Z",
  "published" : "2026-02-19T19:41:07Z",
  "aliases" : [ "CVE-2026-28479" ],
  "summary" : "OpenClaw replaced a deprecated sandbox hash algorithm",
  "details" : "## Affected Packages / Versions\n- npm package: `openclaw`\n- Affected versions: `<= 2026.2.14`\n- Fixed version (pre-set): `2026.2.15`\n\n## Description\nThe sandbox identifier cache key for Docker/browser sandbox configuration used SHA-1 to hash normalized configuration payloads.\n\nSHA-1 is deprecated for cryptographic use and has known collision weaknesses. In this code path, deterministic IDs are used to decide whether an existing sandbox container can be reused safely. A collision in this hash could let one configuration be interpreted as another under the same sandbox cache identity, increasing the risk of cache poisoning and unsafe sandbox state reuse.\n\nThe implementation now uses SHA-256 for these deterministic hashes to restore collision resistance for this security-relevant identifier path.\n\n## Fix Commit(s)\n- `559c8d993`\n\n## Release Process Note\n`patched_versions` is pre-set to `2026.2.15` for the next release. After that release is published, mark this advisory ready for publication.\n\nThanks @kexinoh ( of Tencent zhuque Lab, by https://github.com/Tencent/AI-Infra-Guard) for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.2.15"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.2.14"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-fh3f-q9qw-93j9"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-28479"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/559c8d9930eebb5356506ff1a8cd3dbaec92be77"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/releases/tag/v2026.2.15"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-cache-poisoning-via-deprecated-sha-hash-in-sandbox-configuration"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-327", "CWE-328" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-19T19:41:07Z",
    "nvd_published_at" : "2026-03-05T22:16:22Z"
  }
}