{"items":[{"id":"NVI-00009010","kind":"vulnerability","title":"Authlib: is_secure_transport() loopback exemption can be bypassed with a userinfo component, allowing cleartext-HTTP URLs to non-loopback hosts","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-jj7h-c3hg-m23x","CVE-2026-114614"],"plain_summary":"GitHub lists this reviewed advisory for authlib. 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-4636f7c44849abc47faf41dfd317eaeb"],"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":"2026-10-27T15:37:50.000Z","value":"2.6 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-71f16fbb4225d87458e783d7a29ea952"},{"kind":"CVSS","as_of":"2026-10-29T14:48:13.463Z","value":"2.6 LOW (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-0802dcef6c8fc2a7b294e31fd2d06919"},{"kind":"CVSS","as_of":"2026-10-29T14:48:13.463Z","value":"3.5 LOW (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-0802dcef6c8fc2a7b294e31fd2d06919"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.273%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.19692. Missing scores are unknown.","source_id":"sr-4636f7c44849abc47faf41dfd317eaeb"}],"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-71f16fbb4225d87458e783d7a29ea952","url":"https://github.com/advisories/GHSA-jj7h-c3hg-m23x","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jj7h-c3hg-m23x","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"},{"id":"sr-0802dcef6c8fc2a7b294e31fd2d06919","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114614","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-114614","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:52.895Z"},{"id":"sr-4636f7c44849abc47faf41dfd317eaeb","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-2026-114614","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-71f16fbb4225d87458e783d7a29ea952"],"technology":"authlib","known_exclusions":[],"conditions_summary":"### Summary\n`authlib.common.security.is_secure_transport()` is used throughout Authlib to enforce the OAuth 2.0 / OIDC requirement that endpoint and redirect URIs use TLS, with an RFC 8252 §7.3 exemption for loopback `http://` URIs. The check is implemented as a textual `str.startswith` prefix match, so a URL such as `http://localhost:80@evil.example/cb` — whose actual host is `evil.example` and whose scheme is plain `http` — is accepted as \"secure\". An attacker who can supply a URL to any of the sinks that rely on this check (OIDC RP-Initiated Logout dynamic client registration, RFC 8414 authorization-server metadata validation, error-redirect rendering) can smuggle a cleartext non-loopback URL past the TLS-required guard. This is a defense-in-depth / spec-conformance failure; severity is low.\n\n### Details\n**Affected versions:** `authlib >= 0.13, <= 1.7.2` (all releases containing the loopback prefix exemption; verified against 1.7.2, the current latest)\n\nThe vulnerable function, from `authlib/common/security.py` at v1.7.2:\n\n```python\n13  def is_secure_transport(uri):\n14      \"\"\"Check if the uri is over ssl.\"\"\"\n15      if os.getenv(\"AUTHLIB_INSECURE_TRANSPORT\"):\n16          return","public_affected_ranges":["<= 1.7.2"]}],"null_published_at":"2026-11-03T10:03:31.367Z","source_updated_at":"2026-10-27T15:37:50.000Z","source_disclosed_at":"2026-10-27T15:37:48.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:56:51.534Z"},{"id":"NVI-00009010","kind":"vulnerability","title":"Authlib: is_secure_transport() loopback exemption can be bypassed with a userinfo component, allowing cleartext-HTTP URLs to non-loopback hosts","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jj7h-c3hg-m23x","CVE-2026-114614"],"plain_summary":"GitHub lists this reviewed advisory for authlib. 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-4636f7c44849abc47faf41dfd317eaeb"],"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":"2026-10-27T15:37:50.000Z","value":"2.6 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-71f16fbb4225d87458e783d7a29ea952"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.273%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.19692. Missing scores are unknown.","source_id":"sr-4636f7c44849abc47faf41dfd317eaeb"}],"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-71f16fbb4225d87458e783d7a29ea952","url":"https://github.com/advisories/GHSA-jj7h-c3hg-m23x","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jj7h-c3hg-m23x","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"},{"id":"sr-4636f7c44849abc47faf41dfd317eaeb","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-2026-114614","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-71f16fbb4225d87458e783d7a29ea952"],"technology":"authlib","known_exclusions":[],"conditions_summary":"### Summary\n`authlib.common.security.is_secure_transport()` is used throughout Authlib to enforce the OAuth 2.0 / OIDC requirement that endpoint and redirect URIs use TLS, with an RFC 8252 §7.3 exemption for loopback `http://` URIs. The check is implemented as a textual `str.startswith` prefix match, so a URL such as `http://localhost:80@evil.example/cb` — whose actual host is `evil.example` and whose scheme is plain `http` — is accepted as \"secure\". An attacker who can supply a URL to any of the sinks that rely on this check (OIDC RP-Initiated Logout dynamic client registration, RFC 8414 authorization-server metadata validation, error-redirect rendering) can smuggle a cleartext non-loopback URL past the TLS-required guard. This is a defense-in-depth / spec-conformance failure; severity is low.\n\n### Details\n**Affected versions:** `authlib >= 0.13, <= 1.7.2` (all releases containing the loopback prefix exemption; verified against 1.7.2, the current latest)\n\nThe vulnerable function, from `authlib/common/security.py` at v1.7.2:\n\n```python\n13  def is_secure_transport(uri):\n14      \"\"\"Check if the uri is over ssl.\"\"\"\n15      if os.getenv(\"AUTHLIB_INSECURE_TRANSPORT\"):\n16          return","public_affected_ranges":["<= 1.7.2"]}],"null_published_at":"2026-10-31T23:18:17.233Z","source_updated_at":"2026-10-27T15:37:50.000Z","source_disclosed_at":"2026-10-27T15:37:48.000Z","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":"2026-10-31T21:56:51.534Z"},{"id":"NVI-00009010","kind":"vulnerability","title":"Authlib: is_secure_transport() loopback exemption can be bypassed with a userinfo component, allowing cleartext-HTTP URLs to non-loopback hosts","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jj7h-c3hg-m23x","CVE-2026-114614"],"plain_summary":"GitHub lists this reviewed advisory for authlib. 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-71f16fbb4225d87458e783d7a29ea952"],"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":"2026-10-27T15:37:50.000Z","value":"2.6 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-71f16fbb4225d87458e783d7a29ea952"}],"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-71f16fbb4225d87458e783d7a29ea952","url":"https://github.com/advisories/GHSA-jj7h-c3hg-m23x","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jj7h-c3hg-m23x","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-71f16fbb4225d87458e783d7a29ea952"],"technology":"authlib","known_exclusions":[],"conditions_summary":"### Summary\n`authlib.common.security.is_secure_transport()` is used throughout Authlib to enforce the OAuth 2.0 / OIDC requirement that endpoint and redirect URIs use TLS, with an RFC 8252 §7.3 exemption for loopback `http://` URIs. The check is implemented as a textual `str.startswith` prefix match, so a URL such as `http://localhost:80@evil.example/cb` — whose actual host is `evil.example` and whose scheme is plain `http` — is accepted as \"secure\". An attacker who can supply a URL to any of the sinks that rely on this check (OIDC RP-Initiated Logout dynamic client registration, RFC 8414 authorization-server metadata validation, error-redirect rendering) can smuggle a cleartext non-loopback URL past the TLS-required guard. This is a defense-in-depth / spec-conformance failure; severity is low.\n\n### Details\n**Affected versions:** `authlib >= 0.13, <= 1.7.2` (all releases containing the loopback prefix exemption; verified against 1.7.2, the current latest)\n\nThe vulnerable function, from `authlib/common/security.py` at v1.7.2:\n\n```python\n13  def is_secure_transport(uri):\n14      \"\"\"Check if the uri is over ssl.\"\"\"\n15      if os.getenv(\"AUTHLIB_INSECURE_TRANSPORT\"):\n16          return","public_affected_ranges":["<= 1.7.2"]}],"null_published_at":"2026-10-31T22:13:27.127Z","source_updated_at":"2026-10-27T15:37:50.000Z","source_disclosed_at":"2026-10-27T15:37:48.000Z","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":"2026-10-31T21:56:51.534Z"}],"next_cursor":null,"snapshot_revision":"42594"}