{"items":[{"id":"NVI-00010596","kind":"vulnerability","title":"virtualenv: Deletion recovery can change a symlink target's mode","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-43mp-35q3-x3fq","CVE-2026-113724"],"plain_summary":"GitHub lists this reviewed advisory for virtualenv. 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-2aaff64fe805c1f22219a63305910114"],"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":"2026-10-21T21:31:35.000Z","value":"4.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5f92053acb9d36fb12e159f42e07f4e0"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.203%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.10323. Missing scores are unknown.","source_id":"sr-2aaff64fe805c1f22219a63305910114"}],"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-5f92053acb9d36fb12e159f42e07f4e0","url":"https://github.com/advisories/GHSA-43mp-35q3-x3fq","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-43mp-35q3-x3fq","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"},{"id":"sr-2aaff64fe805c1f22219a63305910114","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-113724","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.841Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5f92053acb9d36fb12e159f42e07f4e0"],"technology":"virtualenv","known_exclusions":[],"conditions_summary":"## Summary\n\nThe deletion error handler obtains permission bits with lstat() but applies them through chmod(), which follows\nsymlinks. On an eligible unlink failure this can change permissions outside the destination.\n\nAnthropic's OSS Scanner reported this as `ANT-2026-UK90QC27` in `virtualenv-20261015-005`, received on 15 October 2026.\n\n## Affected area\n\nPermission recovery after a filesystem deletion error.\n\n## Attacker-controlled input\n\nA deletion must fail on a symbolic-link entry and enter the permission-recovery branch. The invoking user must have\npermission to change the target mode. This is conditional error handling, not the normal successful unlink path.\n\n## Affected code\n\nThe relevant 21.14.8 source is in\nsafe_delete().\n\n## Mechanism\n\n`safe_delete()` asks `shutil.rmtree()` to retry a failed removal after adding owner-write permission. Its error handler\ncalls `os.lstat(path)` for mode bits but `os.chmod(path, ...)` to apply them. For a symlink, `lstat` reads the link's\nmode while `chmod` follows the link. A link inside a read-only directory can therefore ca","public_affected_ranges":["< 21.14.9"]}],"null_published_at":"2026-11-08T19:53:38.911Z","source_updated_at":"2026-10-21T21:31:35.000Z","source_disclosed_at":"2026-10-21T21:31:34.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:07:30.906Z"},{"id":"NVI-00010596","kind":"vulnerability","title":"virtualenv: Deletion recovery can change a symlink target's mode","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-43mp-35q3-x3fq","CVE-2026-113724"],"plain_summary":"GitHub lists this reviewed advisory for virtualenv. 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-92d27cddb2988e12c0b04b1653110335"],"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":"2026-10-21T21:31:35.000Z","value":"4.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5f92053acb9d36fb12e159f42e07f4e0"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.203%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.10344. Missing scores are unknown.","source_id":"sr-92d27cddb2988e12c0b04b1653110335"}],"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-5f92053acb9d36fb12e159f42e07f4e0","url":"https://github.com/advisories/GHSA-43mp-35q3-x3fq","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-43mp-35q3-x3fq","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"},{"id":"sr-92d27cddb2988e12c0b04b1653110335","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-113724","publisher":"FIRST EPSS","observed_at":"2026-10-31T23:13:27.688Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5f92053acb9d36fb12e159f42e07f4e0"],"technology":"virtualenv","known_exclusions":[],"conditions_summary":"## Summary\n\nThe deletion error handler obtains permission bits with lstat() but applies them through chmod(), which follows\nsymlinks. On an eligible unlink failure this can change permissions outside the destination.\n\nAnthropic's OSS Scanner reported this as `ANT-2026-UK90QC27` in `virtualenv-20261015-005`, received on 15 October 2026.\n\n## Affected area\n\nPermission recovery after a filesystem deletion error.\n\n## Attacker-controlled input\n\nA deletion must fail on a symbolic-link entry and enter the permission-recovery branch. The invoking user must have\npermission to change the target mode. This is conditional error handling, not the normal successful unlink path.\n\n## Affected code\n\nThe relevant 21.14.8 source is in\nsafe_delete().\n\n## Mechanism\n\n`safe_delete()` asks `shutil.rmtree()` to retry a failed removal after adding owner-write permission. Its error handler\ncalls `os.lstat(path)` for mode bits but `os.chmod(path, ...)` to apply them. For a symlink, `lstat` reads the link's\nmode while `chmod` follows the link. A link inside a read-only directory can therefore ca","public_affected_ranges":["< 21.14.9"]}],"null_published_at":"2026-11-04T02:53:12.381Z","source_updated_at":"2026-10-21T21:31:35.000Z","source_disclosed_at":"2026-10-21T21:31:34.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:07:30.906Z"},{"id":"NVI-00010596","kind":"vulnerability","title":"virtualenv: Deletion recovery can change a symlink target's mode","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-43mp-35q3-x3fq","CVE-2026-113724"],"plain_summary":"GitHub lists this reviewed advisory for virtualenv. 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-5f92053acb9d36fb12e159f42e07f4e0"],"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":"2026-10-21T21:31:35.000Z","value":"4.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5f92053acb9d36fb12e159f42e07f4e0"}],"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-5f92053acb9d36fb12e159f42e07f4e0","url":"https://github.com/advisories/GHSA-43mp-35q3-x3fq","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-43mp-35q3-x3fq","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5f92053acb9d36fb12e159f42e07f4e0"],"technology":"virtualenv","known_exclusions":[],"conditions_summary":"## Summary\n\nThe deletion error handler obtains permission bits with lstat() but applies them through chmod(), which follows\nsymlinks. On an eligible unlink failure this can change permissions outside the destination.\n\nAnthropic's OSS Scanner reported this as `ANT-2026-UK90QC27` in `virtualenv-20261015-005`, received on 15 October 2026.\n\n## Affected area\n\nPermission recovery after a filesystem deletion error.\n\n## Attacker-controlled input\n\nA deletion must fail on a symbolic-link entry and enter the permission-recovery branch. The invoking user must have\npermission to change the target mode. This is conditional error handling, not the normal successful unlink path.\n\n## Affected code\n\nThe relevant 21.14.8 source is in\nsafe_delete().\n\n## Mechanism\n\n`safe_delete()` asks `shutil.rmtree()` to retry a failed removal after adding owner-write permission. Its error handler\ncalls `os.lstat(path)` for mode bits but `os.chmod(path, ...)` to apply them. For a symlink, `lstat` reads the link's\nmode while `chmod` follows the link. A link inside a read-only directory can therefore ca","public_affected_ranges":["< 21.14.9"]}],"null_published_at":"2026-10-31T22:27:09.625Z","source_updated_at":"2026-10-21T21:31:35.000Z","source_disclosed_at":"2026-10-21T21:31:34.000Z","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":"2026-10-31T22:07:30.906Z"}],"next_cursor":null,"snapshot_revision":"42594"}