GHSA-3p3g-vpw6-4w66 · 深刻度: medium · エコシステム: go — Authentication Bypass in hydra
In Hydra (an OAuth2 Server and OpenID Certified™ OpenID Connect Provider written in Go), before version 1.4.0+oryOS.17, when using client authentication method 'private_key_jwt' [1], 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 check the uniqueness of this `jti` value. Exploiting this vulnerability is somewhat difficult because: - TLS protects against MITM which makes it difficult to intercept valid tokens for replay attacks - The expiry time of the JWT gives only a short window of opportunity where it could be replayed This has been patched in version v1.4.0+oryOS.17
総合評価: CVE-2020-5300 は中リスク(44.7/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 1.03%、59 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.19% | 1.03% | +0.84% |
| 2 | 2025-03-30 | 0.27% | 0.19% | -0.08% |
| 3 | 2025-03-29 | — | 0.27% | — |
EPSS の全履歴 (全 9 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.8 | 3.1 | MEDIUM |
|
1.3 | 4.0 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
1.6 | 3.6 | [email protected] |
| 3.5 | 2.0 | LOW |
|
6.8 | 2.9 | [email protected] |
GHSA-3p3g-vpw6-4w66 · 深刻度: medium · エコシステム: go — Authentication Bypass in hydra
| URL | タグ |
|---|---|
| https://github.com/ory/hydra/commit/700d17d3b7d507de1b1d459a7261d6fb2571ebe3 | Patch Third Party Advisory |
| https://github.com/ory/hydra/releases/tag/v1.4.0 | Third Party Advisory |
| https://github.com/ory/hydra/security/advisories/GHSA-3p3g-vpw6-4w66 | Third Party Advisory |