CVE-2026-42420: OpenClaw: Multiple Code Paths Missing Base64 Pre-Allocation Size Checks
(updated )
Multiple Code Paths Missing Base64 Pre-Allocation Size Checks.
Several base64 decode paths could allocate before enforcing decoded-size limits.
OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary.
References
- github.com/advisories/GHSA-ccx3-fw7q-rr2r
- github.com/openclaw/openclaw
- github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5
- github.com/openclaw/openclaw/security/advisories/GHSA-ccx3-fw7q-rr2r
- nvd.nist.gov/vuln/detail/CVE-2026-42420
- www.vulncheck.com/advisories/openclaw-improper-base64-decoding-size-validation
Code Behaviors & Features
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