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CVE-2026-27626— OliveTin vulnerable to OS Command Injection via `password` argument type and webhook JSON extraction bypasses shell safety checks

Quick assessment

Affected
OliveTin OliveTin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OliveTin是OliveTin开源的一个Web应用。 OliveTin 3000.10.0及之前版本存在操作系统命令注入漏洞，该漏洞源于shell模式安全检查不足，可能导致未经验证的远程代码执行。

CVSS 10.0 · Critical EPSS 0.65% · P50
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I. Basic Information for CVE-2026-27626

Vulnerability Information
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Vulnerability Title
OliveTin vulnerable to OS Command Injection via `password` argument type and webhook JSON extraction bypasses shell safety checks
Source: CVE Program / CVE List V5
Vulnerability Description
OliveTin gives access to predefined shell commands from a web interface. In versions up to and including 3000.10.0, OliveTin's shell mode safety check (`checkShellArgumentSafety`) blocks several dangerous argument types but not `password`. A user supplying a `password`-typed argument can inject shell metacharacters that execute arbitrary OS commands. A second independent vector allows unauthenticated RCE via webhook-extracted JSON values that skip type safety checks entirely before reaching `sh -c`. When exploiting vector 1, any authenticated user (registration enabled by default, `authType: none` by default) can execute arbitrary OS commands on the OliveTin host with the permissions of the OliveTin process. When exploiting vector 2, an unauthenticated attacker can achieve the same if the instance receives webhooks from external sources, which is a primary OliveTin use case. When an attacker exploits both vectors, this results in unauthenticated RCE on any OliveTin instance using Shell mode with webhook-triggered actions. As of time of publication, a patched version is not available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
OliveTin 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OliveTin是OliveTin开源的一个Web应用。 OliveTin 3000.10.0及之前版本存在操作系统命令注入漏洞，该漏洞源于shell模式安全检查不足，可能导致未经验证的远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
OliveTin OliveTin <= 3000.10.0 -

II. Public POCs for CVE-2026-27626

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III. Intelligence Information for CVE-2026-27626

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Vendor Advisories for CVE-2026-27626 (1)

IV. Related Vulnerabilities

Same product: OliveTin
Same vendor: OliveTin
Same weakness: CWE-78

V. Comments for CVE-2026-27626

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