{"items":[{"id":"NVI-00017471","kind":"vulnerability","title":"comm: lossy UTF-8 conversion silently corrupts non-UTF-8 output","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6gcw-w7cp-94g9","CVE-2026-35346"],"plain_summary":"GitHub lists this reviewed advisory for uu_comm. 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-0583d117cce04a02b8ba6b69720369de"],"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":"2026-07-06T19:51:23.000Z","value":"3.3 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-0583d117cce04a02b8ba6b69720369de"}],"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-0583d117cce04a02b8ba6b69720369de","url":"https://github.com/advisories/GHSA-6gcw-w7cp-94g9","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6gcw-w7cp-94g9","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T23:36:01.427Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0583d117cce04a02b8ba6b69720369de"],"technology":"uu_comm","known_exclusions":[],"conditions_summary":"The comm utility in uutils coreutils silently corrupts data by performing lossy UTF-8 conversion on all output lines. The implementation uses String::from_utf8_lossy(), which replaces invalid UTF-8 byte sequences with the Unicode replacement character (U+FFFD). This behavior differs from GNU comm, which processes raw bytes and preserves the original input. This results in corrupted output when the utility is used to compare binary files or files using non-UTF-8 legacy encodings.\n\n---\n_Zellic finding 3.34. 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":"2026-11-05T19:10:21.393Z","source_updated_at":"2026-07-06T19:51:23.000Z","source_disclosed_at":"2026-07-06T19:51:22.000Z","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"}