OpenClaw < 2026.5.12 - Custom Header Leakage via MCP Streamable HTTP Cross-Origin Redirects
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| OpenClaw | OpenClaw | unaffected |
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Configuration 1 [-]
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No data.
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| Openclaw | Openclaw |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-rjxq-qqhf-8hwh | OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.223% probability within 30 days)
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| Metrics |
ssvc
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| 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. | |
| Title | OpenClaw < 2026.5.12 - Custom Header Leakage via MCP Streamable HTTP Cross-Origin Redirects | |
| First Time appeared |
Openclaw
Openclaw openclaw |
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| Weaknesses | CWE-522 | |
| CPEs | cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
Openclaw
Openclaw openclaw |
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| References |
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| Metrics |
cvssV3_1
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