{"items":[{"id":"NVI-00010678","kind":"vulnerability","title":"NLTK: Default ENFORCE=False Disables All pathsec Security Controls","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-p3m8-78j2-g5p3","CVE-2026-62388"],"plain_summary":"GitHub lists this reviewed advisory for nltk. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-17ead8485f8c06a1d8f05b7fb243a546"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.512%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.43829. Missing scores are unknown.","source_id":"sr-17ead8485f8c06a1d8f05b7fb243a546"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-9e62ba563e00d478be61184991acad7c","url":"https://github.com/advisories/GHSA-p3m8-78j2-g5p3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-p3m8-78j2-g5p3","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-17ead8485f8c06a1d8f05b7fb243a546","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-62388","publisher":"FIRST EPSS","observed_at":"2026-11-04T23:33:33.057Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9e62ba563e00d478be61184991acad7c"],"technology":"nltk","known_exclusions":[],"conditions_summary":"NLTK's pathsec.py security module defaults to ENFORCE=False (line 24), which means all 8 security validation functions only emit RuntimeWarning instead of raising exceptions when violations are detected.\n\nThe pathsec module was introduced as the fix for CVE-2024-39705 (arbitrary code execution via pickle) and CVE-2026-0846 (path traversal). However, with ENFORCE=False as the default:\n\n1. pathsec.open('/etc/passwd') succeeds (reads the file, emits warning)\n2. pathsec.validate_network_url('http://169.254.169.254/...') succeeds (warning only)\n3. pickle.loads() via nltk.data.load() proceeds despite unsafe source (warning only)\n\nEvery security gate follows the same pattern:\n```python\nENFORCE = os.environ.get('NLTK_PATHSEC_ENFORCE', '').lower() in ('1', 'true', 'yes')\n\ndef validate_something(path):\n    if is_violation(path):\n        if ENFORCE:\n            raise SecurityError('...')  # Only raised when env var is set\n        else:\n            warnings.warn('...', RuntimeWarning)  # Default: warning only\n    # Execution continues regardless\n```\n\nThis means the security remediations for CVE-2024-39705 and CVE-2026-0846 are effectively disabled by default. Any user who installed NLTK 3.9.x ","public_affected_ranges":["<= 3.9.4"]}],"null_published_at":"2026-11-08T19:53:38.941Z","source_updated_at":"2026-10-27T07:57:48.000Z","source_disclosed_at":"2026-09-02T15:40:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010678","kind":"vulnerability","title":"NLTK: Default ENFORCE=False Disables All pathsec Security Controls","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-p3m8-78j2-g5p3","CVE-2026-62388"],"plain_summary":"GitHub lists this reviewed advisory for nltk. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-08a05176841b2350a5fac6a6aac6ed29"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.512%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.43702. Missing scores are unknown.","source_id":"sr-08a05176841b2350a5fac6a6aac6ed29"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-9e62ba563e00d478be61184991acad7c","url":"https://github.com/advisories/GHSA-p3m8-78j2-g5p3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-p3m8-78j2-g5p3","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-08a05176841b2350a5fac6a6aac6ed29","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-62388","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.859Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9e62ba563e00d478be61184991acad7c"],"technology":"nltk","known_exclusions":[],"conditions_summary":"NLTK's pathsec.py security module defaults to ENFORCE=False (line 24), which means all 8 security validation functions only emit RuntimeWarning instead of raising exceptions when violations are detected.\n\nThe pathsec module was introduced as the fix for CVE-2024-39705 (arbitrary code execution via pickle) and CVE-2026-0846 (path traversal). However, with ENFORCE=False as the default:\n\n1. pathsec.open('/etc/passwd') succeeds (reads the file, emits warning)\n2. pathsec.validate_network_url('http://169.254.169.254/...') succeeds (warning only)\n3. pickle.loads() via nltk.data.load() proceeds despite unsafe source (warning only)\n\nEvery security gate follows the same pattern:\n```python\nENFORCE = os.environ.get('NLTK_PATHSEC_ENFORCE', '').lower() in ('1', 'true', 'yes')\n\ndef validate_something(path):\n    if is_violation(path):\n        if ENFORCE:\n            raise SecurityError('...')  # Only raised when env var is set\n        else:\n            warnings.warn('...', RuntimeWarning)  # Default: warning only\n    # Execution continues regardless\n```\n\nThis means the security remediations for CVE-2024-39705 and CVE-2026-0846 are effectively disabled by default. Any user who installed NLTK 3.9.x ","public_affected_ranges":["<= 3.9.4"]}],"null_published_at":"2026-11-03T17:49:15.026Z","source_updated_at":"2026-10-27T07:57:48.000Z","source_disclosed_at":"2026-09-02T15:40:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010678","kind":"vulnerability","title":"NLTK: Default ENFORCE=False Disables All pathsec Security Controls","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-p3m8-78j2-g5p3","CVE-2026-62388"],"plain_summary":"GitHub lists this reviewed advisory for nltk. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-73b5caea1d6dc6cdfdc45a9721c7aeeb"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.512%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.43718. Missing scores are unknown.","source_id":"sr-73b5caea1d6dc6cdfdc45a9721c7aeeb"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-9e62ba563e00d478be61184991acad7c","url":"https://github.com/advisories/GHSA-p3m8-78j2-g5p3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-p3m8-78j2-g5p3","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-73b5caea1d6dc6cdfdc45a9721c7aeeb","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-62388","publisher":"FIRST EPSS","observed_at":"2026-10-31T23:13:27.698Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9e62ba563e00d478be61184991acad7c"],"technology":"nltk","known_exclusions":[],"conditions_summary":"NLTK's pathsec.py security module defaults to ENFORCE=False (line 24), which means all 8 security validation functions only emit RuntimeWarning instead of raising exceptions when violations are detected.\n\nThe pathsec module was introduced as the fix for CVE-2024-39705 (arbitrary code execution via pickle) and CVE-2026-0846 (path traversal). However, with ENFORCE=False as the default:\n\n1. pathsec.open('/etc/passwd') succeeds (reads the file, emits warning)\n2. pathsec.validate_network_url('http://169.254.169.254/...') succeeds (warning only)\n3. pickle.loads() via nltk.data.load() proceeds despite unsafe source (warning only)\n\nEvery security gate follows the same pattern:\n```python\nENFORCE = os.environ.get('NLTK_PATHSEC_ENFORCE', '').lower() in ('1', 'true', 'yes')\n\ndef validate_something(path):\n    if is_violation(path):\n        if ENFORCE:\n            raise SecurityError('...')  # Only raised when env var is set\n        else:\n            warnings.warn('...', RuntimeWarning)  # Default: warning only\n    # Execution continues regardless\n```\n\nThis means the security remediations for CVE-2024-39705 and CVE-2026-0846 are effectively disabled by default. Any user who installed NLTK 3.9.x ","public_affected_ranges":["<= 3.9.4"]}],"null_published_at":"2026-11-03T10:03:21.792Z","source_updated_at":"2026-10-27T07:57:48.000Z","source_disclosed_at":"2026-09-02T15:40:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010678","kind":"vulnerability","title":"NLTK: Default ENFORCE=False Disables All pathsec Security Controls","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-p3m8-78j2-g5p3","CVE-2026-62388"],"plain_summary":"GitHub lists this reviewed advisory for nltk. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-9e62ba563e00d478be61184991acad7c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-9e62ba563e00d478be61184991acad7c","url":"https://github.com/advisories/GHSA-p3m8-78j2-g5p3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-p3m8-78j2-g5p3","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9e62ba563e00d478be61184991acad7c"],"technology":"nltk","known_exclusions":[],"conditions_summary":"NLTK's pathsec.py security module defaults to ENFORCE=False (line 24), which means all 8 security validation functions only emit RuntimeWarning instead of raising exceptions when violations are detected.\n\nThe pathsec module was introduced as the fix for CVE-2024-39705 (arbitrary code execution via pickle) and CVE-2026-0846 (path traversal). However, with ENFORCE=False as the default:\n\n1. pathsec.open('/etc/passwd') succeeds (reads the file, emits warning)\n2. pathsec.validate_network_url('http://169.254.169.254/...') succeeds (warning only)\n3. pickle.loads() via nltk.data.load() proceeds despite unsafe source (warning only)\n\nEvery security gate follows the same pattern:\n```python\nENFORCE = os.environ.get('NLTK_PATHSEC_ENFORCE', '').lower() in ('1', 'true', 'yes')\n\ndef validate_something(path):\n    if is_violation(path):\n        if ENFORCE:\n            raise SecurityError('...')  # Only raised when env var is set\n        else:\n            warnings.warn('...', RuntimeWarning)  # Default: warning only\n    # Execution continues regardless\n```\n\nThis means the security remediations for CVE-2024-39705 and CVE-2026-0846 are effectively disabled by default. Any user who installed NLTK 3.9.x ","public_affected_ranges":["<= 3.9.4"]}],"null_published_at":"2026-10-31T22:27:09.628Z","source_updated_at":"2026-10-27T07:57:48.000Z","source_disclosed_at":"2026-09-02T15:40:33.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T22:06:46.371Z"}],"next_cursor":null,"snapshot_revision":"42594"}