7.6

CVE-2021-25742: kubernetes ingress-nginx Improper Input Validation

CVSS: 7.6v3.1HighModified
AliasesopenSUSE-SU-2024:11726-1
Published 29-10-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-25742 is a high (CVSS 7.6) Improper Input Validation vulnerability in kubernetes ingress-nginx. EPSS estimates a 2.07% chance of exploitation in the next 30 days, higher than 81% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.6/10
010
High · v3.1 (CVE.org)
EPSS score
2.07%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 29-10-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.07%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.07% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.07%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Ingress Nginx

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Kubernetes2 products
Netapp1 product
Opensuse1 product
  • rke&distro=openSUSE Tumbleweed< 1.3.3-1.1

3 vendors · 4 products

References

4 links