What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-05 · updated 2026-06-17
• Weakness: CWE-400

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.

Affected products

• OliveTin: before 3000.10.2 — fixed in 3000.10.2

How to fix

Upgrade to a fixed version: OliveTin 3000.10.2. Check the vendor advisory for mitigations.

References

• https://github.com/OliveTin/OliveTin/commit/2eb5f0ba79d4bbef3c802bf8b4666a7e18dcfd90
• https://github.com/OliveTin/OliveTin/releases/tag/3000.10.2
• https://github.com/OliveTin/OliveTin/security/advisories/GHSA-pc8g-78pf-4xrp
• https://github.com/OliveTin/OliveTin/security/advisories/GHSA-pc8g-78pf-4xrp

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