CVE-2026-100555

HighCVSS 7.1/10Last modified Oct 5, 2026

Description

OpenClaw is an npm-distributed gateway application. In versions >= 2026.7.1 and < 2026.8.1, Synology Chat attachment delivery could lose DNS pinning: the Gateway validated a single DNS result for a supplied file URL but then passed the original hostname to the Synology NAS, where it could resolve to a different destination. When attachment delivery accepted a remotely influenced hostname, an attacker could use DNS rebinding to make the NAS fetch a private or otherwise policy-denied resource and return its contents to the addressed conversation (server-side request forgery). Practical impact depends on NAS routing, resolver behavior, and the response available at the private destination. The issue is fixed in 2026.8.1; as a workaround, disable remote URL attachment forwarding in Synology Chat.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Sep 26, 2026
Last modified
Oct 5, 2026
NVD status
Deferred

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CVE-2026-100555: High severity, CVSS 7.1 | Vulnix