{"items":[{"id":"NVI-00016347","kind":"vulnerability","title":"Picklescan missing detection when calling built-in python library function timeit.timeit()","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-v7x6-rv5q-mhwc","CVE-2025-71351"],"plain_summary":"GitHub lists this reviewed advisory for picklescan. 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-69ce3bd9aa749d7ed890776f58a8f707"],"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-69ce3bd9aa749d7ed890776f58a8f707","url":"https://github.com/advisories/GHSA-v7x6-rv5q-mhwc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v7x6-rv5q-mhwc","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T22:54:05.264Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-69ce3bd9aa749d7ed890776f58a8f707"],"technology":"picklescan","known_exclusions":[],"conditions_summary":"### Summary\nUsing timeit.timeit() function, which is a built-in python library function to execute remote pickle file.\n\n### Details\nPickle’s deserialization process is known to allow execution of function via reduce method. While Picklescan is meant to detect such exploits, this attack evades detection by calling built-in python library function like **timeit.timeit()**. And since timeit library wasn't inside unsafe globals blacklist, it may not raise red flag in the security scan.\n\nThe attack payload executes in the following steps:\n\nFirst, the attacker craft the payload by calling to **timeit.timeit()** function from timeit library in __reduce__ method\nThen, inside reduce method, the attacker import dangerous libarary like os and calling **os.system()** to run OS commands, for example: curl command. And then the attacker send this malicious pickle file to the victim.\nThen when the victim after checking whether the pickle file is safe by using Picklescan library and this library doesn't dectect any dangerous functions, decide to pickle.load() this malicious pickle file, thus lead to remote code execution.\n\n### PoC\n1. The attacker crafted a malicious pickle file using built-in pyth","public_affected_ranges":["< 0.0.25"]}],"null_published_at":"2026-11-04T10:04:27.934Z","source_updated_at":"2026-09-11T19:31:14.000Z","source_disclosed_at":"2025-04-07T19:37:21.000Z","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":"2026-11-01T22:54:05.264Z"}],"next_cursor":null,"snapshot_revision":"42594"}