{"items":[{"id":"NVI-00013086","kind":"vulnerability","title":"python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-m2h6-j472-rp4c","CVE-2026-69248"],"plain_summary":"GitHub lists this reviewed advisory for cryptography. 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-03b1e29e65319ac1b6d93d15b39b6dd7"],"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":"2026-10-23T21:10:00.157Z","value":"6.9 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-58d0bef6be40f3b2602b09c5dbb94613"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.244%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.15662. Missing scores are unknown.","source_id":"sr-03b1e29e65319ac1b6d93d15b39b6dd7"}],"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-59ac74ee8a14c1af9290d4aba4ef424c","url":"https://github.com/advisories/GHSA-m2h6-j472-rp4c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m2h6-j472-rp4c","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-58d0bef6be40f3b2602b09c5dbb94613","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69248","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-69248","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:58:41.978Z"},{"id":"sr-03b1e29e65319ac1b6d93d15b39b6dd7","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-2026-69248","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.395Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-59ac74ee8a14c1af9290d4aba4ef424c"],"technology":"cryptography","known_exclusions":[],"conditions_summary":"### Summary\nIf an intermediate constrained CA permits the DNS name `foo.example.com`, and the leaf certificate has a wildcard in its DNS SAN of `*.example.com`, python-cryptography's verifier accepts which allows escaping outside of the permitted names.\n\n### PoC\n\n```\n#!/usr/bin/env python3\n\"\"\"Standalone PoC: pyca's DNSConstraint::matches admits a too-broad wildcard SAN.\n\nSetup:\n  Sub-CA permitted constraint: dNSName = foo.example.com\n  Leaf SAN:                    dNSName = *.example.com\nExpected: rejection (RFC 5280 §4.2.1.10 + standard wildcard semantics).\nObserved: pyca accepts; further, asks server-verifier whether the leaf is\nauthoritative for `bar.example.com` and pyca answers yes — a sub-CA scope\nescape.\n\"\"\"\nimport datetime\nfrom cryptography import x509\nfrom cryptography.x509.oid import NameOID\nfrom cryptography.hazmat.primitives import hashes\nfrom cryptography.hazmat.primitives.asymmetric import ec\nfrom cryptography.x509.verification import (\n    PolicyBuilder, Store, ExtensionPolicy, Criticality, VerificationError,\n)\n\nnow = datetime.datetime(2027, 1, 1, tzinfo=datetime.timezone.utc)\nday = datetime.timedelta(days=1)\n\ndef build(subject, issuer, key, issuer_key, ca, exts=()):","public_affected_ranges":[">= 45.0.0, < 49.0.0"]}],"null_published_at":"2026-11-07T07:07:42.545Z","source_updated_at":"2026-09-24T14:54:18.000Z","source_disclosed_at":"2026-08-03T21:26:57.000Z","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":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013086","kind":"vulnerability","title":"python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-m2h6-j472-rp4c","CVE-2026-69248"],"plain_summary":"GitHub lists this reviewed advisory for cryptography. 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-58d0bef6be40f3b2602b09c5dbb94613"],"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":"2026-10-23T21:10:00.157Z","value":"6.9 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-58d0bef6be40f3b2602b09c5dbb94613"}],"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-59ac74ee8a14c1af9290d4aba4ef424c","url":"https://github.com/advisories/GHSA-m2h6-j472-rp4c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m2h6-j472-rp4c","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-58d0bef6be40f3b2602b09c5dbb94613","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69248","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-69248","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:58:41.978Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-59ac74ee8a14c1af9290d4aba4ef424c"],"technology":"cryptography","known_exclusions":[],"conditions_summary":"### Summary\nIf an intermediate constrained CA permits the DNS name `foo.example.com`, and the leaf certificate has a wildcard in its DNS SAN of `*.example.com`, python-cryptography's verifier accepts which allows escaping outside of the permitted names.\n\n### PoC\n\n```\n#!/usr/bin/env python3\n\"\"\"Standalone PoC: pyca's DNSConstraint::matches admits a too-broad wildcard SAN.\n\nSetup:\n  Sub-CA permitted constraint: dNSName = foo.example.com\n  Leaf SAN:                    dNSName = *.example.com\nExpected: rejection (RFC 5280 §4.2.1.10 + standard wildcard semantics).\nObserved: pyca accepts; further, asks server-verifier whether the leaf is\nauthoritative for `bar.example.com` and pyca answers yes — a sub-CA scope\nescape.\n\"\"\"\nimport datetime\nfrom cryptography import x509\nfrom cryptography.x509.oid import NameOID\nfrom cryptography.hazmat.primitives import hashes\nfrom cryptography.hazmat.primitives.asymmetric import ec\nfrom cryptography.x509.verification import (\n    PolicyBuilder, Store, ExtensionPolicy, Criticality, VerificationError,\n)\n\nnow = datetime.datetime(2027, 1, 1, tzinfo=datetime.timezone.utc)\nday = datetime.timedelta(days=1)\n\ndef build(subject, issuer, key, issuer_key, ca, exts=()):","public_affected_ranges":[">= 45.0.0, < 49.0.0"]}],"null_published_at":"2026-11-05T19:10:23.278Z","source_updated_at":"2026-09-24T14:54:18.000Z","source_disclosed_at":"2026-08-03T21:26:57.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013086","kind":"vulnerability","title":"python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m2h6-j472-rp4c","CVE-2026-69248"],"plain_summary":"GitHub lists this reviewed advisory for cryptography. 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-59ac74ee8a14c1af9290d4aba4ef424c"],"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-59ac74ee8a14c1af9290d4aba4ef424c","url":"https://github.com/advisories/GHSA-m2h6-j472-rp4c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m2h6-j472-rp4c","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-59ac74ee8a14c1af9290d4aba4ef424c"],"technology":"cryptography","known_exclusions":[],"conditions_summary":"### Summary\nIf an intermediate constrained CA permits the DNS name `foo.example.com`, and the leaf certificate has a wildcard in its DNS SAN of `*.example.com`, python-cryptography's verifier accepts which allows escaping outside of the permitted names.\n\n### PoC\n\n```\n#!/usr/bin/env python3\n\"\"\"Standalone PoC: pyca's DNSConstraint::matches admits a too-broad wildcard SAN.\n\nSetup:\n  Sub-CA permitted constraint: dNSName = foo.example.com\n  Leaf SAN:                    dNSName = *.example.com\nExpected: rejection (RFC 5280 §4.2.1.10 + standard wildcard semantics).\nObserved: pyca accepts; further, asks server-verifier whether the leaf is\nauthoritative for `bar.example.com` and pyca answers yes — a sub-CA scope\nescape.\n\"\"\"\nimport datetime\nfrom cryptography import x509\nfrom cryptography.x509.oid import NameOID\nfrom cryptography.hazmat.primitives import hashes\nfrom cryptography.hazmat.primitives.asymmetric import ec\nfrom cryptography.x509.verification import (\n    PolicyBuilder, Store, ExtensionPolicy, Criticality, VerificationError,\n)\n\nnow = datetime.datetime(2027, 1, 1, tzinfo=datetime.timezone.utc)\nday = datetime.timedelta(days=1)\n\ndef build(subject, issuer, key, issuer_key, ca, exts=()):","public_affected_ranges":[">= 45.0.0, < 49.0.0"]}],"null_published_at":"2026-11-01T07:29:12.917Z","source_updated_at":"2026-09-24T14:54:18.000Z","source_disclosed_at":"2026-08-03T21:26:57.000Z","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":"2026-11-01T07:25:10.521Z"}],"next_cursor":null,"snapshot_revision":"44495"}