MEDIUM
ORY Hydra before v1.0.0-rc.3+oryOS.9 has Reflected XSS via the oauth2/fallbacks/error error_hint parameter
Published Feb 17, 2019
6.1
MEDIUMCVSS 3.0
EPSS 1.33%
Description
ORY Hydra before v1.0.0-rc.3+oryOS.9 has Reflected XSS via the oauth2/fallbacks/error error_hint parameter.
Affected products
No data.
OR
- 0.1
- 0.1
- 0.1
- 0.1
- 0.2.0
- 0.3.0
- 0.3.1
- 0.4.0
- 0.4.1
- 0.4.2
- 0.4.2
- 0.4.2
- 0.4.2
- 0.4.2
- 0.4.2
- 0.4.3
- 0.5.0
- 0.5.1
- 0.5.2
- 0.5.3
- 0.5.4
- 0.5.5
- 0.5.6
- 0.5.7
- 0.5.8
- 0.6.0
- 0.6.1
- 0.6.2
- 0.6.3
- 0.6.4
- 0.6.5
- 0.6.6
- 0.6.7
- 0.6.8
- 0.6.9
- 0.6.10
- 0.7.0
- 0.7.1
- 0.7.2
- 0.7.3
- 0.7.4
- 0.7.5
- 0.7.6
- 0.7.7
- 0.7.8
- 0.7.9
- 0.7.10
- 0.7.11
- 0.7.12
- 0.7.13
- 0.8.0
- 0.8.1
- 0.8.2
- 0.8.3
- 0.8.4
- 0.8.5
- 0.8.6
- 0.8.7
- 0.9.0
- 0.9.1
- 0.9.2
- 0.9.3
- 0.9.4
- 0.9.5
- 0.9.6
- 0.9.7
- 0.9.8
- 0.9.9
- 0.9.10
- 0.9.11
- 0.9.12
- 0.9.13
- 0.9.14
- 0.9.15
- 0.9.16
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.0
- 0.10.1
- 0.10.2
- 0.10.3
- 0.10.4
- 0.10.5
- 0.10.6
- 0.10.7
- 0.10.8
- 0.10.9
- 0.10.10
- 0.11.0
- 0.11.1
- 0.11.2
- 0.11.3
- 0.11.4
- 0.11.6
- 0.11.7
- 0.11.9
- 0.11.10
- 0.11.12
- 0.11.14
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
No data.
No Red Hat product state for this CVE.
github.com/ory/hydra
Go
Introduced 0 Fixed not fixed
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/ory/hydra | 0 | not fixed |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.33% 0.01328
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01328
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.33% (0.01328) | 69.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.32% (0.01322) | 67.07th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00342) | 54.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00097) | 42.30th | v3 (v2023.03.01) |
| Jul 17, 2024 | 0.10% (0.00097) | 41.07th | v3 (v2023.03.01) |
| Feb 11, 2024 | 0.10% (0.00097) | 39.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00109) | 42.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.13% (0.04134) | 68.25th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.36% (0.05363) | 79.74th | v1 |
| Jan 6, 2022 | 5.36% (0.05363) | 79.54th | v1 |
| Jan 5, 2022 | 1.25% (0.01247) | 69.74th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
Weaknesses (1)
References (7)
- https://drive.google.com/file/d/1-25expUYVfK6vsiCmEabUCuelOP7aUDj/view?usp=drivesdk x_refsource_MISCRelease NotesThird Party Advisory
- https://github.com/advisories/GHSA-7v6r-w4r6-mhch Advisory
- https://github.com/ory/hydra/blob/master/CHANGELOG.md#v100-rc3oryos9-2018-12-06 x_refsource_MISCRelease NotesThird Party Advisory
- https://github.com/ory/hydra/commit/9b5bbd48a72096930af08402c5e07fce7dd770f3 x_refsource_MISCPatchThird Party Advisory
- https://hackerone.com/reports/456333 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-8400
- https://www.youtube.com/watch?v=RIyZLeKEC8E x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://drive.google.com/file/d/1-25expUYVfK6vsiCmEabUCuelOP7aUDj/view?usp=drivesdk | x_refsource_MISCRelease NotesThird Party Advisory | |
| https://github.com/advisories/GHSA-7v6r-w4r6-mhch | Advisory | |
| https://github.com/ory/hydra/blob/master/CHANGELOG.md#v100-rc3oryos9-2018-12-06 | x_refsource_MISCRelease NotesThird Party Advisory | |
| https://github.com/ory/hydra/commit/9b5bbd48a72096930af08402c5e07fce7dd770f3 | x_refsource_MISCPatchThird Party Advisory | |
| https://hackerone.com/reports/456333 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-8400 | ||
| https://www.youtube.com/watch?v=RIyZLeKEC8E | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 17, 2019
Updated Aug 4, 2024
Reserved Feb 16, 2019
Link CVE-2019-8400
CISA Vulnrichment
GHSA-7V6R-W4R6-MHCH Updated n/a