{"id":"GHSA-vfvf-6gx5-mqv6","summary":"Incorrect Authorization in ORY Oathkeeper","details":"ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. When you make a request to an endpoint that requires the scope `foo` using an access token granted with that `foo` scope, introspection will be valid and that token will be cached. The problem comes when a second requests to an endpoint that requires the scope `bar` is made before the cache has expired. Whether the token is granted or not to the `bar` scope, introspection will be valid. A patch will be released with `v0.38.12-beta.1`. Per default, caching is disabled for the `oauth2_introspection` authenticator. When caching is disabled, this vulnerability does not exist. The cache is checked in [`func (a *AuthenticatorOAuth2Introspection) Authenticate(...)`](https://github.com/ory/oathkeeper/blob/6a31df1c3779425e05db1c2a381166b087cb29a4/pipeline/authn/authenticator_oauth2_introspection.go#L152). From [`tokenFromCache()`](https://github.com/ory/oathkeeper/blob/6a31df1c3779425e05db1c2a381166b087cb29a4/pipeline/authn/authenticator_oauth2_introspection.go#L97) it seems that it only validates the token expiration date, but ignores whether the token has or not the proper scopes. The vulnerability was introduced in PR #424. During review, we failed to require appropriate test coverage by the submitter which is the primary reason that the vulnerability passed the review process.","aliases":["CVE-2021-32701","GHSA-qvp4-rpmr-xwrr","GO-2022-0406","GO-2022-0920"],"modified":"2026-09-10T03:49:06.212392331Z","published":"2021-06-24T20:16:02Z","database_specific":{"cwe_ids":["CWE-863"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2021-06-23T20:38:29Z","nvd_published_at":"2021-06-22T20:15:00Z"},"references":[{"type":"WEB","url":"https://github.com/ory/oathkeeper/security/advisories/GHSA-qvp4-rpmr-xwrr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32701"},{"type":"WEB","url":"https://github.com/ory/oathkeeper/pull/424"},{"type":"WEB","url":"https://github.com/ory/oathkeeper/commit/1f9f625c1a49e134ae2299ee95b8cf158feec932"}],"affected":[{"package":{"name":"github.com/ory/oathkeeper","ecosystem":"Go","purl":"pkg:golang/github.com/ory/oathkeeper"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.38.0-beta.2"},{"fixed":"0.38.12-beta.1"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 0.38.11-beta.1","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/06/GHSA-vfvf-6gx5-mqv6/GHSA-vfvf-6gx5-mqv6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}