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CVE-2026-53840 OpenClaw < 2026.5.12 - Custom Header Leakage via MCP Streamable HTTP Cross-Origin Redirects
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | CVE-2026-53840 | 17 Jun 202618:11 | – | circl |
 | CVE-2026-53840 | 16 Jun 202618:04 | – | cve |
 | EUVD-2026-37142 | 17 Jun 202617:55 | – | euvd |
 | OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin | 17 Jun 202617:55 | – | github |
| Duplicate Advisory: MCP Streamable HTTP redirects could forward configured custom headers to another origin | 16 Jun 202621:31 | – | github |
 | CVE-2026-53840 | 16 Jun 202619:17 | – | nvd |
 | GHSA-RJXQ-QQHF-8HWH OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin | 17 Jun 202617:55 | – | osv |
| GHSA-X7CF-6GP3-Q5F8 Duplicate Advisory: MCP Streamable HTTP redirects could forward configured custom headers to another origin | 16 Jun 202621:31 | – | osv |
| MINI-FH23-XV78-H6XR | 18 Jun 202621:16 | – | osv |
 | NPM: OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin | 17 Jun 202617:55 | – | patchstack |
10
[
{
"vendor": "OpenClaw",
"product": "OpenClaw",
"defaultStatus": "unaffected",
"packageURL": "pkg:npm/openclaw",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "semver",
"lessThan": "2026.5.12"
},
{
"version": "2026.5.12",
"status": "unaffected",
"versionType": "semver"
}
],
"repo": "https://github.com/openclaw/openclaw"
}
]Data
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16 Jun 2026 18:04Current
CVSS 46
CVSS 3.17.1
EPSS0.00223