CVE-2026-14627 in hermes-agent
Summary
by MITRE • 07/04/2026
A security vulnerability has been detected in NousResearch hermes-agent up to 0.15.2. This affects the function DiscordAdapter._is_allowed_user of the file gateway/platforms/discord.py of the component Discord Platform Integration. Such manipulation leads to improper authentication. The attack can be launched remotely. This attack is characterized by high complexity. The exploitability is reported as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 07/04/2026
This vulnerability resides within the Discord Platform Integration component of NousResearch hermes-agent version 0.15.2 and earlier, specifically targeting the DiscordAdapter._is_allowed_user function in gateway/platforms/discord.py. The flaw represents a critical authentication bypass issue that allows unauthorized users to gain access to restricted functionality through remote exploitation. The vulnerability's impact extends beyond simple privilege escalation as it fundamentally undermines the platform's user access controls, potentially enabling malicious actors to execute commands or access sensitive data within the integrated Discord environment.
The technical implementation of this flaw demonstrates a failure in proper input validation and authorization checking mechanisms. When the _is_allowed_user function processes user authentication requests, it appears to inadequately verify user credentials or roles, creating a pathway for attackers to circumvent the intended access controls. This type of vulnerability aligns with CWE-285, which addresses improper authorization within software systems. The attack vector requires remote execution capability, meaning an adversary need not have physical access to the system, and can leverage network-based exploitation techniques to compromise the authentication mechanism.
The operational impact of this vulnerability is severe as it compromises the integrity of the Discord platform integration, potentially allowing unauthorized individuals to assume legitimate user identities or gain administrative privileges within the integrated system. Given that the exploit has been publicly disclosed and is reported to be actively used, the risk exposure is heightened significantly. Organizations relying on hermes-agent for Discord integration face potential data breaches, unauthorized command execution, and service disruption. The vulnerability's difficulty level of exploitation suggests it may require specialized knowledge or tools, yet its public disclosure status increases the likelihood of successful attacks by less sophisticated threat actors.
Security mitigations should prioritize immediate patching of the affected hermes-agent versions to address the authentication bypass flaw. Organizations should implement network segmentation to limit access to the Discord integration components and monitor for unauthorized access attempts. Additional protective measures include implementing multi-factor authentication for administrative functions, regular security auditing of integration components, and establishing incident response procedures specifically addressing platform access control breaches. The lack of vendor response to early disclosure indicates potential security gaps in the software supply chain that organizations should consider when evaluating continued reliance on this component. This vulnerability demonstrates the importance of maintaining updated security controls and responsive vendor relationships to address critical authentication flaws that could compromise entire platform ecosystems.
The presence of this vulnerability in a widely used integration framework highlights broader concerns about security practices within open source projects and third-party component management. Organizations should conduct comprehensive security assessments of their integration platforms and establish clear protocols for addressing disclosed vulnerabilities. The difficulty of exploitation combined with public disclosure status creates a high-risk environment where organizations must balance operational needs against security exposure while ensuring proper vendor communication channels are maintained for future vulnerability disclosures.