Is this vulnerability remotely exploitable, or does it require local access?

It is remotely exploitable. In many deployments, authenticated users can exploit it via the web interface, and unauthenticated attackers may exploit it through webhook endpoints if those are reachable from external networks.

What level of access does an attacker need to exploit this issue?

For the `password`-argument vector, an attacker typically needs the ability to access the OliveTin UI as a user, which may be trivial when registration and `authType: none` defaults are used. For the webhook JSON vector, an attacker only needs network access to send crafted webhook requests to an exposed OliveTin endpoint.

What is the safest general fix pattern for this kind of vulnerability?

The safest pattern is to avoid building shell commands from untrusted input altogether. Where command execution is necessary, use parameterized process execution APIs that pass arguments as separate parameters, apply strict allowlisting validation to all inputs, and ensure no untrusted data is interpreted by a shell.

Severity:

CRITICAL RISK

(9.9)

OS Command Injection (CWE-78) in OliveTin Shell Mode and Webhook Handling

CVE-2026-27626

Published:

Feb 24, 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:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution on OliveTin Host

Severity:

CRITICAL RISK

(9.9)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution on OliveTin Host

Severity:

CRITICAL RISK

(9.9)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

OS Command Injection (CWE-78) in OliveTin Shell Mode and Webhook Handling

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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