SSRF (Server-Side Request Forgery) in OpenClaw (CVE-2026-100555)
Summary
SSRF in OpenClaw (CVE-2026-100555). Confidential information can be exposed externally. Mitigation: upgrade to 2026.8.1 or later.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-100555 has been found in OpenClaw.
Confidential information can be exposed externally. CVSS score: 7.1/10.
What to do: upgrade OpenClaw to 2026.8.1 or later.
If unsure, ask your IT team or search "OpenClaw CVE-2026-100555" on the vendor's site.
CVE-2026-100555 (OpenClaw) — CWE-918 / CVSS v3 7.1
Attack vector: remote (network-reachable) / no user interaction
Patched: 2026.8.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
SSRF (CWE-918) exists in OpenClaw.
Check the vendor advisory for the affected versions of OpenClaw.
Severity: High (CVSS 7.1/10). Confidential information can be exposed externally.
Update to 2026.8.1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'OpenClaw' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'OpenClaw' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
OpenClawを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade OpenClaw to 2026.8.1ステージング環境で 2026.8.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web disclosure@vulncheck.com
- web disclosure@vulncheck.com
- web nvd.nist.gov
- web github.com