CVE-2021-25742
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- EPSS
- 2.07% probability · 81th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- kubernetes/ingress-nginx · netapp/trident
- Source
- jordan@liggitt.net
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/kubernetes/ingress-nginx/issues/7837Exploit, Issue Tracking, Mitigation, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQYMailing List, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0001/Third Party Advisory
- https://github.com/kubernetes/ingress-nginx/issues/7837Exploit, Issue Tracking, Mitigation, Third Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQYMailing List, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0001/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.