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CVE-2026-28342: High Vulnerability in OliveTin

A high-severity vulnerability in OliveTin allows unauthenticated users to exploit the PasswordHash API, leading to potential denial of service. Organizations should patch to version 3000.10.2 immediately.

HIGHCVSS 7.5 · Published March 5, 2026

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This vulnerability allows unauthenticated users to trigger excessive memory allocation through the PasswordHash API endpoint in OliveTin, prior to version 3000.10.2. An attacker can send concurrent password hashing requests, potentially exhausting container memory and resulting in service degradation or complete denial of service (DoS). The lack of request throttling and resource limits makes this vulnerability particularly critical.

With a CVSS score of 7.5, this high-severity vulnerability poses a significant risk to organizations using OliveTin. The attack vector is network-based, with low complexity and no privileges or user interaction required. This means that attackers can exploit the vulnerability remotely and without prior authentication.

Risk to organizations includes potential service disruptions, increased operational costs, and reputational damage stemming from outages. Additionally, the vulnerability is a clear indicator of misconfigured resource management within applications, highlighting the importance of robust security practices in development.

Organizations should prioritize patching immediately to version 3000.10.2, which resolves this issue and reinforces the need for ongoing security assessments and updates.

Vulnerability Details

The OliveTin vulnerability (CVE-2026-28342) allows unauthenticated users to exploit the PasswordHash API endpoint, leading to potential memory exhaustion. This issue arises from the lack of request throttling and resource limits during memory-intensive hashing operations. The vulnerability affects all versions prior to 3000.10.2 and is classified under CWE-400 (Uncontrolled Resource Consumption) and CWE-770 (Allocation of Resources Without Limits or Throttling).

The CVSS score of 7.5 indicates a high severity level, emphasizing the critical nature of this vulnerability. The attack vector is network-based, with low complexity, requiring no privileges or user interaction.

This vulnerability was published on March 5, 2026, and has been analyzed thoroughly, leading to the issuance of a patch in version 3000.10.2.

Technical Analysis

The root cause of this vulnerability lies in the PasswordHash API endpoint's inability to manage concurrent requests effectively. The endpoint performs computationally and memory-intensive hashing operations without implementing request throttling or resource limits. As a result, attackers can issue multiple parallel requests, overwhelming the available container memory and causing service failures.

The attack vector is network-based, allowing remote exploitation without any required privileges or user interaction. The attack complexity is categorized as low, making it accessible to a wide range of attackers. The vulnerability impacts availability significantly, leading to potential service outages.

Risk & Impact Analysis

Real-world deployment risk for this vulnerability is substantial. Organizations utilizing OliveTin could face significant service disruption, leading to financial losses and damage to their reputation. The potential for denial of service attacks poses a serious threat, especially for businesses relying heavily on web services.

The blast radius of this vulnerability could affect all users of the affected versions of OliveTin, resulting in widespread outages. Given the high CVSS score and the absence of a workaround, urgency is critical for organizations to address this vulnerability.

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions of OliveTin prior to 3000.10.2 are affected by this vulnerability. Organizations using these versions should upgrade to ensure protection against potential denial of service attacks.

Mitigation & Remediation

To mitigate this vulnerability, organizations should upgrade to OliveTin version 3000.10.2 or later. This patch addresses the issues related to the PasswordHash API endpoint and implements necessary security measures.

In addition to patching, organizations should consider implementing request throttling and monitoring for unusual activity on their APIs. Regular penetration testing can also help identify and remediate similar vulnerabilities.

penetration testing can help ensure that applications are resilient against such vulnerabilities.

Detection Guidance

Organizations should monitor their systems for signs of unusual API request patterns that may indicate attempts to exploit this vulnerability. Logging request parameters and monitoring for high volumes of requests to the PasswordHash endpoint can help identify potential attacks.

Behavioral anomalies, such as sudden spikes in memory usage, should be investigated promptly. Network signatures related to excessive API requests can also be implemented to enhance detection efforts.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2026-28342 highlights the need for robust API security practices. It serves as a reminder that unprotected endpoints can lead to substantial resource exhaustion and denial of service.

Security teams should adopt proactive measures, including regular vulnerability assessments and adherence to secure coding practices, to prevent similar issues from arising.

For further insights on securing APIs, organizations can refer to our comprehensive guide on API penetration testing and other related security practices.

Additionally, organizations should examine trends in vulnerability management to enhance their security posture.

Understanding the implications of vulnerabilities like CVE-2026-28342 is crucial for maintaining the integrity and availability of services in today's threat landscape. Organizations must stay vigilant and continuously improve their security frameworks.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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