EUVD-2026-76693Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
MAM session cookie is fully readable unauthenticated (C:H); stored cookie can be replaced and MAM updates forced (I:L); no availability impact.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
2DescriptionCVE.org
Mousehole is a background service to update a seedbox IP for MAM and web app to manage it. Prior to version 0.4.05, Mousehole's HTTP/WebSocket management boundary is reachable without application-layer authentication or browser/LAN provenance checks. The service stores a MyAnonamouse (MAM) session cookie in state and reuses the same cookie-bearing serialization for persisted state, public API responses, and WebSocket state updates. Any client that can reach the published Mousehole port can read cookie-bearing state, connect to WebSocket state updates, replace the stored cookie, or force MAM update side effects. The deployment examples publish port 5010 broadly with Docker's 5010:5010 syntax, which can make the issue reachable on mixed-trust LAN/VPN interfaces. Version 0.4.0 patches the issue.
AnalysisAI
Unauthenticated access to Mousehole's HTTP/WebSocket management interface (port 5010) exposes the stored MyAnonamouse (MAM) session cookie to any network peer in versions prior to 0.4.0. The service serializes its internal state - including the live MAM session cookie - identically across persisted storage, public API responses, and WebSocket push updates, meaning a passive read of any endpoint yields the credential. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Mousehole must be running with port 5010 reachable by the attacker - the default Docker deployment (`5010:5010`) satisfies this on any host with a non-loopback interface. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector supplied (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N, score 6.9) assigns no confidentiality impact, which conflicts directly with the description: the MAM session cookie - a credential enabling account access on a private tracker - is fully readable by any unauthenticated client. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Mousehole to version 0.4.0 or later, which introduces application-layer authentication on the HTTP and WebSocket management interface per the vendor advisory at https://github.com/t-mart/mousehole/security/advisories/GHSA-v64r-gfrc-f6vq and the CHANGELOG at https://github.com/t-mart/mousehole/blob/master/CHANGELOG.md#v040---2026-06-04. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
Leaving vuln.today