CVE-2021-25748: Ingress-nginx `path` sanitization can be bypassed with newline character
Kubernetes · Kubernetes ingress-nginx
Vendor fix available · Affected: Kubernetes ingress-nginx · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 53% of scored CVEs
DescriptionCVE.org
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Kubernetes · Kubernetes ingress-nginxbefore 1.2.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Kubernetes
- Published
- May 2023
- Bounty reports
- 1 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2021-25748
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- Injection in path parameter of Ingress-nginxKubernetes · 2026 · high severityValid
CoverageNo articles yet
No CyberSIXT article names CVE-2021-25748 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.