CVE-2026-53823 [HIGH] – OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom fe

OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom feature that binds to mutable Slack display names. Attackers with Slack account access can change display name metadata to match policy entries, potentially gaining unauthorized agent access intended for other identities.