DocsGPT up to 0.15.0 Custom Prompt Feature code injection

Summaryinfo

A vulnerability categorized as critical has been discovered in DocsGPT up to 0.15.0. The affected element is an unknown function of the component Custom Prompt Feature. Executing a manipulation can lead to code injection. The identification of this vulnerability is CVE-2026-31020. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in DocsGPT up to 0.15.0 and classified as critical. This vulnerability affects an unknown functionality of the component Custom Prompt Feature. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In DocsGPT 0.15.0 and below, the application provides a custom prompt feature that allows users to define prompt content used during chatbot interactions. This functionality renders user-supplied prompt data using Jinja templates without input sanitization or sandboxing. An unauthenticated attacker can inject malicious template expressions, leading to a server-side template injection (SSTI) vulnerability that can be exploited to achieve full remote code execution (RCE).

This vulnerability was named CVE-2026-31020 since 03/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/04/2026). The MITRE ATT&CK project declares the attack technique as T1059.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-71608). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• DocsGPT

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15.0

CPE 2.3info

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CPE 2.2info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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