{"items":[{"id":"NVI-00017639","kind":"vulnerability","title":"morgan vulnerable to Log Forging via unneutralized control characters in :remote-user","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4vj7-5mj6-jm8m","CVE-2026-5078"],"plain_summary":"GitHub lists this reviewed advisory for morgan. 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-363e160a565867a4d5b9bb99b7fed3f4"],"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":"2026-07-10T14:32:18.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-363e160a565867a4d5b9bb99b7fed3f4"}],"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-363e160a565867a4d5b9bb99b7fed3f4","url":"https://github.com/advisories/GHSA-4vj7-5mj6-jm8m","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4vj7-5mj6-jm8m","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T23:34:12.429Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-363e160a565867a4d5b9bb99b7fed3f4"],"technology":"morgan","known_exclusions":[],"conditions_summary":"### Impact\n\nMorgan's `:remote-user` token extracts the Basic auth username from the `Authorization` header and writes it to the log stream without neutralizing control characters. An attacker can send a crafted `Authorization: Basic` header containing CR/LF characters to inject forged log lines, corrupting the one-request-per-line structure of access logs.\n\nThe built-in `combined`, `common`, `default`, and `short` formats are affected, as well as any custom format that includes `:remote-user`.\n\n### Patches\n\nUsers should upgrade to version 1.11.0.\n\n### Workarounds\n\nUse a custom format string that does not include `:remote-user`.","public_affected_ranges":[">= 1.2.0, <= 1.10.1"]}],"null_published_at":"2026-11-05T19:10:21.429Z","source_updated_at":"2026-07-10T14:32:18.000Z","source_disclosed_at":"2026-07-10T14:32:15.000Z","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":"2026-11-04T23:34:12.429Z"}],"next_cursor":null,"snapshot_revision":"42594"}