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CVE-2026-3288 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: March 11, 2026

Ingress-nginx - Command Injection

Published: March 9, 2026Updated: March 11, 2026PoC AvailableRemote Exploitable

Overview

Ingress-nginx contains a command injection caused by improper handling of the nginx.ingress.kubernetes.io/rewrite-target annotation, letting attackers execute arbitrary code and disclose Secrets, exploit requires access to ingress resource configuration.

Severity & Score

Severity: High

CVSS Score: 8.8

EPSS Score: 4.0%(Probability of exploitation in next 30 days)

Impact

Attackers can execute arbitrary code and access all Secrets accessible to the ingress-nginx controller, potentially compromising the entire cluster.

Mitigation

Update to the latest ingress-nginx version with the fix applied.

References

Social Media Activity(2 posts)

Chris Short

@ChrisShort

Mar 9, 2026

[Security Advisory] CVE-2026-3288: ingress-nginx rewrite-target nginx configuration injection #devopsish https://groups.google.com/a/kubernetes.io/g/dev/c/NoW4Ollgoxc/m/m1to2nAqAAAJ?utm_medium=email&utm_source=footer

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TheHackerWire

@thehackerwire

Mar 9, 2026

🟠 CVE-2026-3288 - High (8.8) 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-ngin... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-3288/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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GitHub Repositories(1 repo)

https://github.com/SnailSploit/CVE-2026-3288

Related Resources

Details

CVE ID: CVE-2026-3288
Severity: High
CVSS Score: 8.8
Type: command_injection
Status: unconfirmed
EPSS: 4.0%
Social Posts: 2

CWE

CWE-20

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

4.0%Probability of exploitation in the next 30 days