What is GHSA-7jvr-hv34-f3rw?

GHSA-7jvr-hv34-f3rw is a security advisory published by GitHub Security Advisories with High severity. A vulnerability in `nltk.app.wordnet_app` up to version 3.9.3 allows unauthenticated remote...

Which CVE IDs does GHSA-7jvr-hv34-f3rw cover?

GHSA-7jvr-hv34-f3rw covers the following CVE IDs: CVE-2026-12199. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-7jvr-hv34-f3rw?

GHSA-7jvr-hv34-f3rw has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-7jvr-hv34-f3rwHighCVSS 7.5

A vulnerability in `nltk.app.wordnet_app` up to version 3.9.3 allows unauthenticated remote...

Vendor

GitHub Security Advisories

Published

June 17, 2026

Last Modified

June 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-12199 →

📋 Description

A vulnerability in nltk.app.wordnet_app up to version 3.9.3 allows unauthenticated remote shutdown of the local WordNet Browser HTTP server when started in its default mode. The server listens on all interfaces and processes a specific unauthenticated GET request (/SHUTDOWN%20THE%20SERVER) to terminate the process immediately via os._exit(0). This results in a denial of service, impacting service availability. The issue arises due to insufficient authentication and protection mechanisms for critical server functions.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-12199
https://huntr.com/bounties/cee4ca6a-d17f-4746-abad-c68119633d37
https://github.com/advisories/GHSA-7jvr-hv34-f3rw