Security Vulnerabilities
OpenClaw before 2026.3.31 lacks a shared pre-auth concurrency budget on the public LINE webhook path, allowing attackers to cause transient availability loss. Remote attackers can flood the webhook endpoint with concurrent requests before signature verification to exhaust resources and degrade service availability.
CVSS Score
6.9
EPSS Score
0.001
Published
2026-04-23
OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.
CVSS Score
5.3
EPSS Score
0.001
Published
2026-04-23
OpenClaw before 2026.3.31 contains an authentication rate limiting bypass vulnerability that allows attackers to circumvent shared authentication protections using fake device tokens. Attackers can exploit the mixed WebSocket authentication flow to bypass rate limiting controls and conduct brute force attacks against weak shared passwords.
CVSS Score
6.3
EPSS Score
0.001
Published
2026-04-23
OpenClaw before 2026.3.31 contains a decompression bomb vulnerability in image processing that fails to properly enforce pixel-limit guards on sips. Attackers can exploit this by uploading oversized images to cause denial of service through excessive memory consumption.
CVSS Score
7.1
EPSS Score
0.0
Published
2026-04-23
OpenClaw before 2026.3.31 contains an information disclosure vulnerability in the Control Interface bootstrap JSON that exposes version and assistant agent identifiers. Attackers can extract sensitive fingerprinting information from the Control UI bootstrap payload to identify system versions and agent configurations.
CVSS Score
6.9
EPSS Score
0.0
Published
2026-04-23
OpenClaw before 2026.3.31 allows workspace .env files to override the OPENCLAW_BUNDLED_HOOKS_DIR environment variable, enabling loading of attacker-controlled hook code. Attackers can replace trusted default-on bundled hooks from untrusted workspaces to execute arbitrary code.
CVSS Score
8.5
EPSS Score
0.0
Published
2026-04-23
OpenClaw before 2026.3.31 contains a callback origin mutation vulnerability in Plivo voice-call replay that allows attackers to mutate in-process callback origin before replay rejection. Attackers with captured valid callbacks for live calls can exploit this to manipulate callback origins during the replay process.
CVSS Score
6.3
EPSS Score
0.0
Published
2026-04-23
OpenClaw before 2026.3.31 contains a time-of-check-time-of-use vulnerability in sandbox file operations that allows attackers to bypass fd-based defenses. Attackers can exploit check-then-act patterns in apply_patch, remove, and mkdir operations to manipulate files between validation and execution.
CVSS Score
4.3
EPSS Score
0.0
Published
2026-04-23
Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to perform spoofing over a network.
CVSS Score
10.0
EPSS Score
0.001
Published
2026-04-23
OpenClaw before 2026.3.28 contains an environment variable sanitization vulnerability where GIT_TEMPLATE_DIR and AWS_CONFIG_FILE are not blocked in the host-env blocklist. Attackers can exploit approved exec requests to redirect git or AWS CLI behavior through attacker-controlled configuration files to execute untrusted code or load malicious credentials.
CVSS Score
5.8
EPSS Score
0.0
Published
2026-04-23