Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names
Published Jul 29, 2020
5.9
MEDIUMCVSS 3.1
EPSS 0.89%
Description
The Kubernetes ingress-nginx component prior to version 0.28.0 allows a user with the ability to create namespaces and to read and create ingress objects to overwrite the password file of another ingress which uses nginx.ingress.kubernetes.io/auth-type: basic and which has a hyphenated namespace or secret name.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<0.28.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Kubernetes | Ingress-Nginx | n/a |
|
- < 0.28.0
No data.
No Red Hat product state for this CVE.
k8s.io/ingress-nginx
Go
Introduced 0 Fixed 0.28.0
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | k8s.io/ingress-nginx | 0 | 0.28.0 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.89% (0.00894) | 58.09th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.89% (0.00894) | 57.93th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00090) | 39.10th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.09% (0.00090) | 38.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00090) | 36.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.84% (0.01840) | 47.83th | v1 |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Jan 5, 2022 | 0.42% (0.00416) | 26.65th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (3)
- https://github.com/advisories/GHSA-hhpm-74pm-hf35 Advisory
- https://github.com/kubernetes/ingress-nginx/issues/5126 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-8553
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-hhpm-74pm-hf35 | Advisory | |
| https://github.com/kubernetes/ingress-nginx/issues/5126 | x_refsource_CONFIRMThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-8553 |
Change history (0)
No recorded changes yet.