{"items":[{"id":"NVI-00017703","kind":"vulnerability","title":"mktemp: empty TMPDIR creates temp files in CWD instead of /tmp","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2w8r-9xj7-69j5","CVE-2026-35342"],"plain_summary":"GitHub lists this reviewed advisory for uu_mktemp. 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-4c1529101aa96d1516867987e4943e18"],"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":"2026-07-06T19:50:43.000Z","value":"3.3 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-4c1529101aa96d1516867987e4943e18"}],"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-4c1529101aa96d1516867987e4943e18","url":"https://github.com/advisories/GHSA-2w8r-9xj7-69j5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2w8r-9xj7-69j5","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T23:36:01.427Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4c1529101aa96d1516867987e4943e18"],"technology":"uu_mktemp","known_exclusions":[],"conditions_summary":"The mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid path. This causes temporary files to be created in the current working directory (CWD) instead of the intended secure temporary directory. If the CWD is more permissive or accessible to other users than /tmp, it may lead to unintended information disclosure or unauthorized access to temporary data.\n\n---\n_Zellic finding 3.11. Reported in the Zellic *uutils coreutils Program Security Assessment* (for Canonical, Jan 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`._","public_affected_ranges":["< 0.6.0"]}],"null_published_at":"2026-11-05T19:10:21.454Z","source_updated_at":"2026-07-06T19:50:43.000Z","source_disclosed_at":"2026-07-06T19:50:41.000Z","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":"2026-11-04T23:36:01.427Z"}],"next_cursor":null,"snapshot_revision":"42594"}