VULNERABILITY INTELLIGENCE

CVE-2026-42420

CVSS score4.3 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-04-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-770

Primary references