OpenClaw before 2026.8.1 DNS Rebinding via attachment delivery
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.8.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.8.1
40 records Highest priority Priority MEDIUM 2 MEDIUM, 38 LOW
Other records, highest priority first
- TI-2026-64719 OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket UpgradePriority MEDIUM 43
- TI-2026-64727 OpenClaw before 2026.8.1 DNS Rebinding via CDP HostnamePriority MEDIUM 40
- TI-2026-64728 OpenClaw before 2026.8.1 Unauthorized Command Job AccessPriority LOW 39
Timeline
- 2026-10-02 Threatist record created from CVE-2026-100555
- 2026-10-03 Alias added: GHSA-659j-39wf-988v
- 2026-10-05 CISA SSVC decision points changed
References
More OpenClaw vulnerabilities
- TI-2026-07590 Crabbox < v0.12.0 Environment Variable Information Disclosure CVSS 4.0CRITICAL 9.3
- TI-2026-25309 OpenClaw < 2026.3.28 Media Parsing Path Traversal to Arbitrary File Read CVSS 4.0HIGH 8.7
- TI-2026-65190 OpenClaw Windows Node before 2026.7.1 Remote Code Execution via system.execApprovals.set CVSS 4.0HIGH 8.7
- TI-2026-65188 OpenClaw Windows Node before 2026.7.1 Authorization Bypass CVSS 4.0HIGH 8.7
- TI-2026-20394 Exposure of resource to wrong sphere in OpenClaw CVSS 3.1HIGH 8.8
- TI-2026-27742 OpenClaw < 2026.3.24 - Arbitrary Code Execution via .npmrc in Local Plugin/Hook Installation CVSS 4.0HIGH 8.4
Sources
- CVE-2026-100555 · CVE Program
- CVE-2026-100555 · NVD
- FIRST EPSS
- GHSA-659j-39wf-988v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences