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Vulnerabilities CVE-2026-42420

CVE-2026-42420

Medium
Open
TLP:CLEAR

AI Analysis

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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.

Details

CVSS Score
6.5
EPSS Score
0.30%

22.7th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
Apr 28, 2026
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