{"items":[{"id":"NVI-00011724","kind":"vulnerability","title":"Vyper: Memory corruption using function calls within tuples / nested calls","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2r3x-4mrv-mcxf"],"plain_summary":"GitHub lists this reviewed advisory for vyper. 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-0d8dbe7a2131e57a079cbdfe639ef5af"],"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-0d8dbe7a2131e57a079cbdfe639ef5af","url":"https://github.com/advisories/GHSA-2r3x-4mrv-mcxf","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2r3x-4mrv-mcxf","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:59:16.959Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0d8dbe7a2131e57a079cbdfe639ef5af"],"technology":"vyper","known_exclusions":[],"conditions_summary":"### Impact\nWhen performing a function call inside a tuple or as an argument inside another function call, there is a memory corruption issue that occurs because of an incorrect pointer to the the tip of the stack.\n\nExample code:\n```python\n@internal\ndef _foo(a: uint256, b: uint256, c: uint256) -> (uint256, uint256, uint256, uint256, uint256):\n    return 1, a, b, c, 5\n\n@internal\ndef _foo2() -> uint256:\n    a: uint256[10] = [6,7,8,9,10,11,12,13,15,16]\n    return 4\n\n@external\ndef foo() -> (uint256, uint256, uint256, uint256, uint256):\n    return self._foo(2, 3, self._foo2())\n```\n\nPlease see #2186 for further information\n\n### Patches\nThis problem was fixed in #2186, and released as a part of `v0.2.6`.","public_affected_ranges":["< 0.2.6"]}],"null_published_at":"2026-11-01T01:03:56.594Z","source_updated_at":"2026-10-06T15:22:30.000Z","source_disclosed_at":"2026-10-06T15:22:29.000Z","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":"2026-11-01T00:59:16.959Z"}],"next_cursor":null,"snapshot_revision":"42594"}