oraios Serena up to 1.5.1 Web Dashboard dns rebinding

Summaryinfo

A vulnerability, which was classified as critical, has been found in oraios Serena up to 1.5.1. This issue affects some unknown processing of the component Web Dashboard. This manipulation causes dns rebinding. The identification of this vulnerability is CVE-2026-49471. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in oraios Serena up to 1.5.1 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Web Dashboard. The manipulation with an unknown input leads to a dns rebinding vulnerability. The CWE definition for the vulnerability is CWE-350. The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Serena is a powerful MCP toolkit for coding that provides semantic retrieval and editing capabilities. Prior to v1.5.2, Serena's built-in web dashboard exposes an unauthenticated Flask API on a fixed, predictable port, with no authentication, no CSRF protection, and no Host header validation. A DNS rebinding attack allows a malicious webpage to reach this API from any browser and write arbitrary content to the agent's persistent memory store, which the agent reads and acts on autonomously. Combined with execute_shell_command using shell=True, this creates a remote code execution chain requiring only that the victim visit a malicious webpage while Serena is running. This issue is fixed in version v1.5.2.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-49471 since 05/30/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1583.002 according to MITRE ATT&CK.

Upgrading to version 1.5.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-42077). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• oraios

Name

• Serena

Version

• 1.5.0
• 1.5.1

Website

• Product: https://github.com/oraios/serena/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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