CVE-2026-53840
1 advisory.
npm/openclaw CVE-2026-53840: high 7.1, EPSS 0.31%
OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin
Action: Upgrade openclaw to 2026.5.12 or later.
npm i openclaw@2026.5.12Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2026.5.12 | - |
Fixed versions
| 2026.5.12 |
Sources
- osv: GHSA-rjxq-qqhf-8hwh
- https://github.com/openclaw/openclaw/security/advisories/GHSA-rjxq-qqhf-8hwh
- https://nvd.nist.gov/vuln/detail/CVE-2026-53840
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-custom-header-leakage-via-mcp-streamable-http-cross-origin-redirects
CVE-2026-53840 · published · modified · JSON