High severity · published Mar 5, 2026
CVE-2026-28342
OliveTin: Unauthenticated Denial of Service via Memory Exhaustion in PasswordHash API Endpoint
7.5
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OL
OliveTin · OliveTin
< 3000.10.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28342
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28342
Patch
https://github.com/OliveTin/OliveTin/commit/2eb5f0ba79d4bbef3c802bf8b4666a7e18dcfd90
Product
https://github.com/OliveTin/OliveTin/releases/tag/3000.10.2
Exploit
https://github.com/OliveTin/OliveTin/security/advisories/GHSA-pc8g-78pf-4xrp
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