Vulnerability · Published Jul 29, 2026 · Assigned by GitHub_M
CVE-2026-67437OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)
High 7.5
In plain English
A high-severity uncontrolled resource consumption in OliveTin from OliveTin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
OliveTin gives access to predefined shell commands from a web interface. From 3000.0.0 until 3000.17.0, the service/internal/auth/otoauth2/restapi_auth_oauth2.go OAuth2 login handler stores per-login state in the registeredStates map on every /oauth/login request without expiring, deleting, or bounding entries, allowing an unauthenticated attacker to exhaust memory and cause a denial of service. This issue is fixed in version 3000.17.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/OliveTin/OliveTin | 0.0.0-20260708075951-ec114e95d297 | GHSA-xpxj-f2fm-rqch |
| Go | github.com/OliveTin/OliveTin | 0.0.0-20260708075951-ec114e95d297 | GO-2026-6146 |
Affected products (as reported)
Weakness: CWE-400, CWE-401, CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H