How broadly exploitable is this vulnerability?

Exploitability depends heavily on deployment. If the BlueBubbles webhook is only reachable from the local machine and protected by a strong secret, the practical risk is reduced. The vulnerability becomes significantly more exploitable when a public-facing reverse proxy or similar component forwards traffic to the loopback-bound Gateway without enforcing strong upstream authentication.

Does an attacker need valid credentials or local access to exploit this?

Not necessarily. When a reverse proxy exposes the webhook endpoint and simply forwards traffic to a localhost-bound service, an attacker who can reach that proxy path may be able to send requests that are treated as authenticated without knowing the webhook password, as long as the configuration allows the loopback-based trust bypass.

What is the safest general fix pattern for this issue?

The most robust pattern is to require and verify a

Severity:

HIGH RISK

(7.5)

Improper Authentication by Network Source (CWE-863) in OpenClaw BlueBubbles Webhook Channel

CVE-2026-26316

Published:

Feb 19, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Improper Authentication

CWE:

CWE-863

Impact:

Unauthorized Access and Action Spoofing via Webhook Channel

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Authentication

CWE:

CWE-863

Impact:

Unauthorized Access and Action Spoofing via Webhook Channel

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Improper Authentication by Network Source (CWE-863) in OpenClaw BlueBubbles Webhook Channel

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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