Gptline: Unauthenticated remote shutdown in nltk.app.wordnet_app (CVE-2026-33231)
The nltk.app.wordnet_app contains an unauthenticated remote shutdown vulnerability that allows any client able to reach the HTTP server to terminate the WordNet Browser process by sending a specific GET request. This results in a denial of service as the server exits immediately without controlled shutdown. The issue occurs when the server is started in its default mode, listening on all interfaces with no authentication or confirmation required.
AI Analysis
Technical Summary
The vulnerability in nltk.app.wordnet_app (CVE-2026-33231) allows unauthenticated remote shutdown of the local WordNet Browser HTTP server. When started in default mode (runBrowser=True, server_mode=False), the server listens on all interfaces and processes a GET request to the path 'SHUTDOWN THE SERVER' by calling os._exit(0), causing immediate termination of the process. This leads to a denial of service as any reachable client can stop the service without authentication or confirmation.
Potential Impact
Any client that can reach the listening port of the WordNet Browser HTTP server can remotely terminate the service, causing denial of service. The impact is limited to availability, with no confidentiality or integrity loss. The server listens on all interfaces by default, no authentication or CSRF protection is implemented, and the shutdown is immediate and uncontrolled.
Mitigation Recommendations
A patch is available for this vulnerability. Users should apply the official fix to prevent unauthenticated remote shutdown. Until patched, avoid exposing the WordNet Browser HTTP server to untrusted networks or restrict access to trusted clients only.
Gptline: Unauthenticated remote shutdown in nltk.app.wordnet_app (CVE-2026-33231)
Description
The nltk.app.wordnet_app contains an unauthenticated remote shutdown vulnerability that allows any client able to reach the HTTP server to terminate the WordNet Browser process by sending a specific GET request. This results in a denial of service as the server exits immediately without controlled shutdown. The issue occurs when the server is started in its default mode, listening on all interfaces with no authentication or confirmation required.
CVSS v3.1
Score 7.5high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in nltk.app.wordnet_app (CVE-2026-33231) allows unauthenticated remote shutdown of the local WordNet Browser HTTP server. When started in default mode (runBrowser=True, server_mode=False), the server listens on all interfaces and processes a GET request to the path 'SHUTDOWN THE SERVER' by calling os._exit(0), causing immediate termination of the process. This leads to a denial of service as any reachable client can stop the service without authentication or confirmation.
Potential Impact
Any client that can reach the listening port of the WordNet Browser HTTP server can remotely terminate the service, causing denial of service. The impact is limited to availability, with no confidentiality or integrity loss. The server listens on all interfaces by default, no authentication or CSRF protection is implemented, and the shutdown is immediate and uncontrolled.
Mitigation Recommendations
A patch is available for this vulnerability. Users should apply the official fix to prevent unauthenticated remote shutdown. Until patched, avoid exposing the WordNet Browser HTTP server to untrusted networks or restrict access to trusted clients only.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-gptline-CVE-2026-33231
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
- Cvss Version
- 3.1
Threat ID: 6aac8e5a55bf5e2cf5491afa
Added to database: 09/18/2026, 01:05:30 UTC
Last enriched: 09/18/2026, 01:51:42 UTC
Last updated: 09/18/2026, 02:06:56 UTC
Views: 4
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