CVSS 3.1
8.1 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NCVE-2020-15222
High (8.1) in ory fosite. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in github.com/ory/fosite 0.31.0.
In ORY Fosite (the security first OAuth2 & OpenID Connect framework for Go) before version 0.31.0, when using "private_key_jwt" authentication the uniqueness of the `jti` value is not checked. When using client authentication method "private_key_jwt", OpenId specification says the following about assertion `jti`: "A unique identifier for the token, which can be used to prevent reuse of the token. These tokens MUST only be used once, unless conditions for reuse were negotiated between the parties". Hydra does not seem to check the uniqueness of this `jti` value. This problem is fixed in version 0.31.0.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-345, CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- ory:fosite
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-v3q9-2p3m-7g43 | Go | github.com/ory/fosite | <0.31.0 | 0.31.0 |
| GO-2021-0110 | Go | github.com/ory/fosite | <0.31.0 | 0.31.0 |
References
- https://github.com/ory/fosite/commit/0c9e0f6d654913ad57c507dd9a36631e1858a3e9
- https://github.com/ory/fosite/security/advisories/GHSA-v3q9-2p3m-7g43
- https://openid.net/specs/openid-connect-core-1_0.html#ClientAuthentication
- https://github.com/ory/fosite/commit/0c9e0f6d654913ad57c507dd9a36631e1858a3e9
- https://github.com/ory/fosite/security/advisories/GHSA-v3q9-2p3m-7g43