Concourse Open Redirect in the /sky/login endpoint
Published May 13, 2020
6.1
MEDIUMCVSS 3.1
EPSS 0.91%
Description
Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a user to click on a link using the OAuth redirect link with an untrusted website and gain access to that user's access token in Concourse. (This issue is similar to, but distinct from, CVE-2018-15798.)
Affected products
-
- Version unspecifiedStatusaffectedConstraints<5.2.8
- Version unspecifiedStatusaffectedConstraints<5.5.10
- Version unspecifiedStatusaffectedConstraints<5.8.1
- Version unspecifiedStatusaffectedConstraints<6.0.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- < 5.2.8
- ≥ 5.3.0 · < 5.5.10
- ≥ 5.6.0 · < 5.8.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.91% (0.00907) | 58.52th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.91% (0.00907) | 58.36th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.12% (0.00123) | 47.30th | v3 (v2023.03.01) |
| Nov 15, 2023 | 0.12% (0.00123) | 46.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00120) | 44.54th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Mar 31, 2022 | 2.56% (0.02561) | 62.63th | v2 (v2022.01.01) |
| Jan 6, 2022 | 2.44% (0.02445) | 54.36th | v1 |
| Jan 5, 2022 | 0.56% (0.00556) | 34.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.56% (0.00556) | 0.00th | v1 |
References (1)
- https://tanzu.vmware.com/security/cve-2020-5409 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://tanzu.vmware.com/security/cve-2020-5409 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.