CVE-2026-28342: OliveTin: Unauthenticated Denial of Service via Memory Exhaustion in PasswordHash API Endpoint

Vulnerability summary

CVE-2026-28342 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in olivetin. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 05-03-2026
   PublishedVulnerability first disclosed.
2. 06-03-2026
   Last modifiedVulnerability information updated.

Description

OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.10.2, the PasswordHash API endpoint allows unauthenticated users to trigger excessive memory allocation by sending concurrent password hashing requests. By issuing multiple parallel requests, an attacker can exhaust available container memory, leading to service degradation or complete denial of service (DoS). The issue occurs because the endpoint performs computationally and memory-intensive hashing operations without request throttling, authentication requirements, or resource limits. This issue has been patched in version 3000.10.2.

• CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
• CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.