{"items":[{"id":"NVI-00009205","kind":"vulnerability","title":"pypdf has possible infinite loop when cloning dictionaries","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mfr5-77xh-9j7h","CVE-2026-119205"],"plain_summary":"GitHub lists this reviewed advisory for pypdf. 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-f2fcadf6df0891de91d07ede52fa0d6a"],"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-f2fcadf6df0891de91d07ede52fa0d6a","url":"https://github.com/advisories/GHSA-mfr5-77xh-9j7h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-mfr5-77xh-9j7h","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f2fcadf6df0891de91d07ede52fa0d6a"],"technology":"pypdf","known_exclusions":[],"conditions_summary":"### Impact\n\nAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires cloning/duplicating a `DictionaryObject`.\n\n### Patches\n\nThis has been fixed in pypdf==6.21.4.\n\n### Workarounds\n\nIf you cannot upgrade yet, consider applying the changes from PR #4288.","public_affected_ranges":["< 6.21.4"]}],"null_published_at":"2026-10-31T22:13:31.290Z","source_updated_at":"2026-10-30T23:12:21.000Z","source_disclosed_at":"2026-10-30T23:12:20.000Z","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":"2026-10-31T21:55:49.621Z"}],"next_cursor":null,"snapshot_revision":"42594"}