{"items":[{"id":"NVI-00015160","kind":"vulnerability","title":"NLTK vulnerable to Eval Injection via collocations CLI arguments","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-848c-c2cx-j7qx","CVE-2025-71408"],"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-16c0a6fb42c4c271ce742bd975ee08cc"],"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":"CVSS","as_of":"2026-08-12T19:30:22.000Z","value":"7.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-31df563d4ac841b395e3da910b6b755e"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.265%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.18512. Missing scores are unknown.","source_id":"sr-16c0a6fb42c4c271ce742bd975ee08cc"}],"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-31df563d4ac841b395e3da910b6b755e","url":"https://github.com/advisories/GHSA-848c-c2cx-j7qx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-848c-c2cx-j7qx","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:17:12.848Z"},{"id":"sr-16c0a6fb42c4c271ce742bd975ee08cc","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-2025-71408","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.769Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-31df563d4ac841b395e3da910b6b755e"],"technology":"nltk","known_exclusions":[],"conditions_summary":"NLTK (Natural Language Toolkit) before version 3.9.3 contains an eval injection vulnerability in the nltk.collocations module that allows an attacker who controls command-line arguments to execute arbitrary Python code. When collocations.py is invoked directly, the __main__ block passes command-line arguments directly to eval() as suffixes of BigramAssocMeasures without allowlist validation or sanitization, enabling an attacker to supply a Python expression that escapes the intended attribute lookup and executes arbitrary code including OS commands via the os module.","public_affected_ranges":["< 3.9.3"]}],"null_published_at":"2026-11-06T00:29:57.325Z","source_updated_at":"2026-08-12T19:30:22.000Z","source_disclosed_at":"2026-07-25T00:31:47.000Z","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":"2026-11-02T20:17:12.848Z"},{"id":"NVI-00015160","kind":"vulnerability","title":"NLTK vulnerable to Eval Injection via collocations CLI arguments","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-848c-c2cx-j7qx","CVE-2025-71408"],"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-31df563d4ac841b395e3da910b6b755e"],"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":"CVSS","as_of":"2026-08-12T19:30:22.000Z","value":"7.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-31df563d4ac841b395e3da910b6b755e"}],"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-31df563d4ac841b395e3da910b6b755e","url":"https://github.com/advisories/GHSA-848c-c2cx-j7qx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-848c-c2cx-j7qx","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:17:12.848Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-31df563d4ac841b395e3da910b6b755e"],"technology":"nltk","known_exclusions":[],"conditions_summary":"NLTK (Natural Language Toolkit) before version 3.9.3 contains an eval injection vulnerability in the nltk.collocations module that allows an attacker who controls command-line arguments to execute arbitrary Python code. When collocations.py is invoked directly, the __main__ block passes command-line arguments directly to eval() as suffixes of BigramAssocMeasures without allowlist validation or sanitization, enabling an attacker to supply a Python expression that escapes the intended attribute lookup and executes arbitrary code including OS commands via the os module.","public_affected_ranges":["< 3.9.3"]}],"null_published_at":"2026-11-03T10:03:26.555Z","source_updated_at":"2026-08-12T19:30:22.000Z","source_disclosed_at":"2026-07-25T00:31:47.000Z","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":"2026-11-02T20:17:12.848Z"}],"next_cursor":null,"snapshot_revision":"42594"}