CVE-2026-3288

HIGH EPSS 93.1%
Published Mar 9, 20263mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published Mar 9, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
93.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 2

VendorProductVersionRange
kubernetesingress-nginx* <1.13.8
kubernetesingress-nginx*≥1.14.0  –  <1.14.4

References 3

  • openwall.com http://www.openwall.com/lists/oss-security/2026/03/09/8
    Mailing ListThird Party Advisory
  • github.com https://github.com/bvabhishek/CVE-2026-3288-lab
    MitigationThird Party Advisory
  • github.com https://github.com/kubernetes/kubernetes/issues/137560
    Issue TrackingThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.