GHSA-x7cf-6gp3-q5f8: Duplicate Advisory MCP Streamable HTTP Redirects Could Vulnerability

MODERATE
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CVSS 7.1
CWE-522
Published
Advisory Summary

GHSA-x7cf-6gp3-q5f8 is a MODERATE (CVSS 7.1) mcp streamable http redirects could vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Duplicate Advisory libraries in the PyPI ecosystem. The issue involves mcp streamable http redirects could forward configured custom headers to another origin. Remediation is available in the latest vendor maintenance releases.

GHSA-x7cf-6gp3-q5f8 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-x7cf-6gp3-q5f8
Severity MODERATE
CVSS v3.1 Base Score 7.1
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Duplicate Advisory
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.1

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:H/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 High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-x7cf-6gp3-q5f8

To remediate this vulnerability, upgrade all affected Duplicate Advisory 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: Latest secure release 
pip install openclaw>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show openclaw

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-x7cf-6gp3-q5f8, inspect your installed packages using pip:

pip show openclaw

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show openclaw command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-522: Insufficiently Protected Credentials, where the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. In Duplicate Advisory, 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

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rjxq-qqhf-8hwh. This link is maintained to preserve external references. ## Original Description OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP endpoint can redirect requests to exfiltrate sensitive headers like API keys or tenant-routing credentials to attacker-controlled origins.

GHSA-x7cf-6gp3-q5f8 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
pypi/openclaw
PyPI

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-rjxq-qqhf-8hwh
NVD — GHSA-x7cf-6gp3-q5f8 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53840
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-custom-header-leakage-via-mcp-streamable-http-cross-origin-redirects

Frequently Asked Questions

What is GHSA-x7cf-6gp3-q5f8?
GHSA-x7cf-6gp3-q5f8 is a security vulnerability in Duplicate Advisory involving MCP Streamable HTTP redirects could forward configured custom headers to another origin under CWE-522: Insufficiently Protected Credentials.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: openclaw.
What version fixes GHSA-x7cf-6gp3-q5f8?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-x7cf-6gp3-q5f8?
GHSA-x7cf-6gp3-q5f8 has a CVSS v3.1 base score of 7.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with GHSA-x7cf-6gp3-q5f8?
GHSA-x7cf-6gp3-q5f8 is classified under CWE-522: Insufficiently Protected Credentials (The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.).
How can I check PyPI dependencies for GHSA-x7cf-6gp3-q5f8?
Run the dependency tree command: 'pip show 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-x7cf-6gp3-q5f8",
  "modified" : "2026-06-17T17:54:46Z",
  "published" : "2026-06-16T21:31:57Z",
  "withdrawn" : "2026-06-17T17:54:46Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: MCP Streamable HTTP redirects could forward configured custom headers to another origin",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-rjxq-qqhf-8hwh. This link is maintained to preserve external references.\n\n## Original Description\nOpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP endpoint can redirect requests to exfiltrate sensitive headers like API keys or tenant-routing credentials to attacker-controlled origins.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 2026.5.12"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-rjxq-qqhf-8hwh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53840"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-custom-header-leakage-via-mcp-streamable-http-cross-origin-redirects"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-522" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-17T17:54:46Z",
    "nvd_published_at" : "2026-06-16T19:17:00Z"
  }
}