OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion (Unbounded Map Growth)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-67437
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-29 21:17:47 UTC
Updated2026-07-30 19:21:23 UTC
DescriptionOliveTin 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.003540000 probability, percentile 0.281370000 (date 2026-07-31)

Problem Types: CWE-400 | CWE-401 | CWE-770 | CWE-400 CWE-400: Uncontrolled Resource Consumption | CWE-401 CWE-401: Missing Release of Memory after Effective Lifetime | CWE-770 CWE-770: Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OliveTin OliveTin affected >= 3000.0.0, < 3000.17.0 Not specified

References

ReferenceSourceLinkTags
github.com/OliveTin/OliveTin/commit/ec114e95d297b806c3ca0c37bc139b3c9c51... [email protected] github.com
github.com/OliveTin/OliveTin/security/advisories/GHSA-xpxj-f2fm-rqch 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/OliveTin/OliveTin/releases/tag/3000.17.0 [email protected] github.com
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