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CVE-2026-42420

OpenClaw

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.

CVSS 4.3EPSS 0.302%Risk 0.44
View source
Published
2026-04-28 19:37:45
Affected versions
<2026.4.8
Type
Core software
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L