CVE Explorer

CVE-2026-12199

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 fo

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:28c7c0c8749e906cd19c6ff36a9d87dd0b8cf5fa17c1069c6b4ad4b62766c5da

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"nltk/nltk","vendor":"nltk","versions":[{"lessThanOrEqual":"latest","status":"affected","version":"unspecified","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7163ba7f6c1f24e0ff5868be21ea6a2b89c786cd59bcb198c673acccd792ad9f · sha256:97e8ec70c1bbf95f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"metric_type":"cvssV3_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:7163ba7f6c1f24e0ff5868be21ea6a2b89c786cd59bcb198c673acccd792ad9f · sha256:97e8ec70c1bbf95f… · /containers/cna/metrics/0/cvssV3_0

CWE assertions

1 source assertion

{"cweId":"CWE-306","description":"CWE-306 Missing Authentication for Critical Function","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:7163ba7f6c1f24e0ff5868be21ea6a2b89c786cd59bcb198c673acccd792ad9f · sha256:97e8ec70c1bbf95f… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"tags":["exploit"],"url":"https://huntr.com/bounties/cee4ca6a-d17f-4746-abad-c68119633d37"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7163ba7f6c1f24e0ff5868be21ea6a2b89c786cd59bcb198c673acccd792ad9f · sha256:97e8ec70c1bbf95f… · /containers/adp/0/references/0

{"url":"https://huntr.com/bounties/cee4ca6a-d17f-4746-abad-c68119633d37"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7163ba7f6c1f24e0ff5868be21ea6a2b89c786cd59bcb198c673acccd792ad9f · sha256:97e8ec70c1bbf95f… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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