Advisories

OpenClaw < 2026.4.8 - Improper Base64 Decoding Size Validation

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severity
medium
date
Affecting
  • OpenClaw < 2026.4.8

CWE
  • CWE-770: Allocation of Resources Without Limits or Throttling
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
zsx (@zsxsoft), KeenSecurityLab
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.

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