High severity · published Mar 5, 2026
CVE-2026-28790
OliveTin: Unauthenticated Action Termination via KillAction When Guests Must Login
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.11.0, OliveTin allows an unauthenticated guest to terminate running actions through KillAction even when authRequireGuestsToLogin: true is enabled. Guests are correctly blocked from dashboard access, but can still call the KillAction RPC directly and successfully stop a running action. This is a broken access control issue that causes unauthorized denial of service against legitimate action executions. This issue has been patched in version 3000.11.0.
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
< 3000.11.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28790
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28790
Patch
https://github.com/OliveTin/OliveTin/commit/d9804182eae43cf49f735e6533ddbe1541c2b9a9
Product
https://github.com/OliveTin/OliveTin/releases/tag/3000.11.0
Exploit
https://github.com/OliveTin/OliveTin/security/advisories/GHSA-4fqm-6fmh-82mq
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