Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-94094
n/a OpenClaw — OpenClaw Canvas Host Route server.ts createCanvasHostHandler denial of service
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N L N N N L 2.1 .0047 38.5 —
AFFECTED
Product Versions Fixed
OpenClaw 2026.9.0 – —
TIMELINE
Sep 20 Reserved by VulDB
Sep 20 Published (CNA: VulDB)
Sep 22 EXPLOIT PUBLISHED — CVE-2026-94094 (OpenClaw). Public exploit reference added.
Description
A flaw has been found in OpenClaw up to 2026.9.5. Affected is the function createCanvasHostHandler of the file extensions/canvas/src/host/server.ts of the component Canvas Host Route. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been published and may be used. Fix suggestion's "streaming/size-limit" was never shipped - latest 2026.9.5 still buffers the whole file via readFile() (src/canvas/serve.runtime.ts:17,114), unlike the sibling WS path which caps at 64KB. The vendor was contacted early about this disclosure.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| September 20, 2026 | Reserved | Reserved by VulDB |
| September 20, 2026 | Published | Published (CNA: VulDB) |
| September 22, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-94094 (OpenClaw). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| n/a | OpenClaw | — | 2026.9.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-94094 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.