Skip to content
CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-42420

OpenClaw < 2026.4.8 - Improper Base64 Decoding Size Validation

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

OpenClaw OpenClaw

Default version status: unaffected

  • 0 to < 2026.4.8affected
  • 2026.4.8unaffected
pkg:npm/openclaw

References