CVE-2026-28790 is a high-severity vulnerability affecting OliveTin, a platform that allows access to predefined shell commands from a web interface. This vulnerability allows an unauthenticated guest to terminate running actions via the KillAction feature, even when the system is configured to require guest authentication. Specifically, prior to version 3000.11.0, guests could bypass restrictions that should have prevented them from executing this action. Although they are blocked from accessing the dashboard, they can still call the KillAction RPC directly, leading to unauthorized denial of service against legitimate action executions.
The severity of this vulnerability is classified as high, with a CVSS score of 7.5. The attack vector is network-based, indicating that an attacker could exploit this vulnerability remotely without requiring physical access to the system. The attack complexity is low, meaning that successful exploitation does not require advanced skills. The primary risk involves the availability impact, which is rated as high, as it can disrupt ongoing processes.
Organizations using OliveTin must prioritize addressing this vulnerability in their patch cycle. The issue was patched in version 3000.11.0, and it is critical for users to upgrade to this version to protect against potential attacks. Failure to address this vulnerability can lead to significant service disruptions.
As of now, there are no confirmed public exploits for CVE-2026-28790, but the potential for exploitation exists given the nature of the vulnerability. Organizations should assess their risk exposure based on their use of OliveTin and the potential for malicious actors to leverage this vulnerability.
Vulnerability Details
The official description of CVE-2026-28790 notes that OliveTin allows unauthenticated access to predefined shell commands from a web interface. The broken access control issue enables unauthorized users to terminate running actions through the KillAction feature. This vulnerability has been categorized under multiple CWE classifications, including CWE-284, CWE-862, and CWE-863, indicating issues with improper access control and authentication.
The vulnerability was published on March 5, 2026, and has been analyzed for its impact and potential exploitability. The last modification to the CVE record occurred on March 10, 2026. Affected versions include all OliveTin versions prior to 3000.11.0.
Technical Analysis
The root cause of CVE-2026-28790 stems from a broken access control mechanism within the OliveTin application. The attack vector is network-based, which allows attackers to exploit the vulnerability remotely. Attack complexity is low, indicating that exploitation does not require advanced technical skills. No user interaction is required for an attacker to exploit this vulnerability.
In terms of impact, the confidentiality and integrity impacts are rated as none, which means that sensitive data is not at risk from this vulnerability. However, the availability impact is rated as high, indicating that legitimate users may experience disruptions in service due to unauthorized actions taken by guests.
Risk & Impact Analysis
The real-world risk associated with CVE-2026-28790 includes potential denial of service for users of OliveTin. An attacker could leverage this vulnerability to terminate critical operations, leading to service interruptions and potential financial losses. Given the high severity and availability impact, organizations utilizing OliveTin should consider this vulnerability a critical threat and prioritize remediation.
Organizations should assess the urgency of addressing this vulnerability based on their operational dependencies on OliveTin. With the CVSS score of 7.5 and the potential for significant service disruption, it is essential to include this vulnerability in the priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of OliveTin prior to version 3000.11.0 are affected by this vulnerability. Users are strongly encouraged to update to the latest version to mitigate risks associated with this issue.
Mitigation & Remediation
To mitigate the risk associated with CVE-2026-28790, organizations should upgrade to OliveTin version 3000.11.0 or later. This version includes patches that address the broken access control issue. If immediate upgrading is not possible, organizations should implement additional access controls to restrict unauthenticated access to critical features.
Further, organizations should consider establishing network controls to limit exposure and monitor for any unauthorized access attempts. Regular security testing, including penetration testing, can help identify and address vulnerabilities before they are exploited.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized access attempts to the KillAction feature. Behavioral anomalies, such as unexpected terminations of actions by unauthenticated users, should also be investigated. Network signatures can help detect attempts to exploit this vulnerability, particularly if they involve calls to the KillAction RPC.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-28790 reflects a trend toward inadequate access control mechanisms in web applications. This vulnerability serves as a case study for organizations to reassess their access control policies, especially in services that expose sensitive functionalities over the web.
Security teams should implement robust security practices and consider reviewing their application architectures to prevent similar vulnerabilities. For more comprehensive insights on vulnerability management, organizations can refer to the vulnerability management program and the importance of continuous security assessments.
Organizations should also stay informed about broader trends in application security, such as those outlined in the State of Application Security report, which highlights emerging threats and vulnerabilities.
Additionally, organizations can enhance their defensive postures by exploring resources on penetration testing methodologies to better understand how to identify and remediate vulnerabilities proactively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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