GHSA-gfg9-5357-hv4c: OpenClaw Webchat Audio Embedding Could Read Vulnerability

MODERATE
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CWE-200 CWE-22
Published
Advisory Summary

GHSA-gfg9-5357-hv4c is a MODERATE webchat audio embedding could read vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting OpenClaw libraries in the npm ecosystem. The issue involves webchat audio embedding could read local files without local-root containment. Remediation is available by upgrading affected packages to version 2026.4.15.

GHSA-gfg9-5357-hv4c at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-gfg9-5357-hv4c
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-gfg9-5357-hv4c

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: 2026.4.15 
npm install openclaw@2026.4.15
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 GHSA-gfg9-5357-hv4c, 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 2026.4.15), 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. 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 OpenClaw deployments before `2026.4.15` could embed host-local audio files into webchat responses without applying the local media root containment check used by other media-serving paths. If an attacker could influence an agent or tool-produced `ReplyPayload.mediaUrl`, the webchat audio embedding helper could resolve an absolute local path or `file:` URL, read an audio-like file under the size cap, and base64-encode it into the webchat media response. This crossed the model/tool-output boundary into a host file read. Prompt injection or malicious tool output is a delivery mechanism; the security boundary failure is the missing local-root containment check. The impact is narrow: the file had to be readable by the gateway process, have an audio-like extension, and fit within the webchat audio size cap. The issue exposed contents into the webchat assistant/media transcript path; it was not a general remote filesystem API. ## Affected Packages / Versions - Package: `openclaw` on npm - Affected versions: `<= 2026.4.14` - Patched version: `2026.4.15` The latest public release, `2026.4.21`, also contains the fix. ## Patches The public fix threads the applicable local media roots into the webchat audio embedding path and calls `assertLocalMediaAllowed` before local audio content is read. Current `main` also includes an additional `trustedLocalMedia` gate so untrusted model/tool payloads cannot opt into local audio embedding. Fix commit: - `6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde` ## Workarounds Upgrade to `openclaw@2026.4.15` or later. The latest public release, `2026.4.21`, is fixed. Before upgrading, avoid exposing webchat sessions to untrusted prompt/tool content that can influence reply media URLs. ## Credits OpenClaw thanks @zsxsoft for reporting.

GHSA-gfg9-5357-hv4c Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.4.15
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.15
2026.4.15

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-gfg9-5357-hv4c
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw

Frequently Asked Questions

What is GHSA-gfg9-5357-hv4c?
GHSA-gfg9-5357-hv4c is a security vulnerability in OpenClaw involving Webchat audio embedding could read local files without local-root containment under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.4.15 across affected packages: openclaw.
What version fixes GHSA-gfg9-5357-hv4c?
Upgrading to 2026.4.15 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.15. Upgrade your dependency to 2026.4.15 or later.
What CWE is associated with GHSA-gfg9-5357-hv4c?
GHSA-gfg9-5357-hv4c is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check npm dependencies for GHSA-gfg9-5357-hv4c?
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-gfg9-5357-hv4c",
  "modified" : "2026-04-29T21:34:39Z",
  "published" : "2026-04-29T21:34:39Z",
  "aliases" : [ ],
  "summary" : "OpenClaw: Webchat audio embedding could read local files without local-root containment",
  "details" : "## Impact\n\nOpenClaw deployments before `2026.4.15` could embed host-local audio files into webchat responses without applying the local media root containment check used by other media-serving paths.\n\nIf an attacker could influence an agent or tool-produced `ReplyPayload.mediaUrl`, the webchat audio embedding helper could resolve an absolute local path or `file:` URL, read an audio-like file under the size cap, and base64-encode it into the webchat media response. This crossed the model/tool-output boundary into a host file read. Prompt injection or malicious tool output is a delivery mechanism; the security boundary failure is the missing local-root containment check.\n\nThe impact is narrow: the file had to be readable by the gateway process, have an audio-like extension, and fit within the webchat audio size cap. The issue exposed contents into the webchat assistant/media transcript path; it was not a general remote filesystem API.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` on npm\n- Affected versions: `<= 2026.4.14`\n- Patched version: `2026.4.15`\n\nThe latest public release, `2026.4.21`, also contains the fix.\n\n## Patches\n\nThe public fix threads the applicable local media roots into the webchat audio embedding path and calls `assertLocalMediaAllowed` before local audio content is read. Current `main` also includes an additional `trustedLocalMedia` gate so untrusted model/tool payloads cannot opt into local audio embedding.\n\nFix commit:\n\n- `6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde`\n\n## Workarounds\n\nUpgrade to `openclaw@2026.4.15` or later. The latest public release, `2026.4.21`, is fixed. Before upgrading, avoid exposing webchat sessions to untrusted prompt/tool content that can influence reply media URLs.\n\n## Credits\n\nOpenClaw thanks @zsxsoft for reporting.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.15"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.4.14"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-gfg9-5357-hv4c"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-29T21:34:39Z",
    "nvd_published_at" : null
  }
}