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CVE-2020-8565
Incomplete fix for CVE-2019-11250 allows for token leak in logs when logLevel >= 9
Medium4.7EPSS 0.52%
- Published
- Updated
- Reserved
- Assigned by
- kubernetes
Description
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.52% · top 56% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Weakness
Affected products
- affected <= 1.19.3
- affected <= 1.18.10
- affected <= 1.17.13
- affected < 1.20.0-alpha2
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gok8s.io/client-goGHSA-8cfg-vx93-jvxw (opens in a new tab)
- Gok8s.io/kubernetesGHSA-8cfg-vx93-jvxw (opens in a new tab)
What to do
Workaround: Do not enable verbose logging in production (log level >= 9), limit access to logs.
References (2)
- Multiple secret leaks when verbose logging is enabled (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/kubernetes/kubernetes/issues/95623 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-8cfg-vx93-jvxw (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-8565)Record last updated .