Description
OpenClaw before 2026.4.8 contains improper input validation in base64 decode paths that allocate memory before enforcing decoded-size limits. Attackers can exploit multiple code paths to cause memory exhaustion or denial of service through crafted base64-encoded input.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.4.8 | 2026.4.8 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.4.8 | 2026.4.8 | GHSA-ccx3-fw7q-rr2r |
Advisories 1
- WID-SEC-2026-1005 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 28, 2026
References
- GitHub Security Advisory (GHSA-ccx3-fw7q-rr2r) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: OpenClaw < 2026.4.8 - Improper Base64 Decoding Size Validation third-party-advisory