CVE-2026-42420
OpenClaw before 2026.4.8 contains improper input validation in base64 decode paths that allocate memory before enforcing
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.
MEDIUM · CVSS 4.3
EPSS 0.00051
Monitor
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0
YARA rules0