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.
References
| Link | Resource |
|---|---|
| https://github.com/openclaw/openclaw/security/advisories/GHSA-rjxq-qqhf-8hwh | Vendor Advisory |
| https://www.vulncheck.com/advisories/openclaw-custom-header-leakage-via-mcp-streamable-http-cross-origin-redirects | Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
17 Jun 2026, 20:31
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Openclaw
Openclaw openclaw |
|
| CPE | cpe:2.3:a:openclaw:openclaw:2026.5.12:beta6:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta7:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta4:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta5:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta1:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta2:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta8:*:*:*:node.js:*:* cpe:2.3:a:openclaw:openclaw:2026.5.12:beta3:*:*:*:node.js:*:* |
|
| References | () https://github.com/openclaw/openclaw/security/advisories/GHSA-rjxq-qqhf-8hwh - Vendor Advisory | |
| References | () https://www.vulncheck.com/advisories/openclaw-custom-header-leakage-via-mcp-streamable-http-cross-origin-redirects - Third Party Advisory |
16 Jun 2026, 19:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-16 19:17
Updated : 2026-06-17 20:31
NVD link : CVE-2026-53840
Mitre link : CVE-2026-53840
CVE.ORG link : CVE-2026-53840
JSON object : View
Products Affected
openclaw
- openclaw
CWE
CWE-522
Insufficiently Protected Credentials