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HIGH

CVE-2026-77180

CVSS v3

8.3

HIGH

EPSS Score

0.5 %

exploit probability, as of 2026-09-29

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

When NGINX Ingress Controller is configured with Ingress annotations, an injection vulnerability exists in the configuration generator of NGINX Ingress Controller. Multiple user-controllable fields are written into the generated NGINX configuration without sanitization. An authenticated attacker with permission to create or modify these annotations may craft values that inject arbitrary NGINX configuration directives. Impact: An authenticated attacker granted write access to NGINX Ingress Cont

Technical details

Published
2026-09-02
Last Modified
2026-09-03

Frequently asked questions

What is CVE-2026-77180?

When NGINX Ingress Controller is configured with Ingress annotations, an injection vulnerability exists in the configuration generator of NGINX Ingress Controller. Multiple user-controllable fields are written into the generated NGINX configuration without sanitization. An authenticated attacker with permission to create or modify these annotations may craft values that inject arbitrary NGINX configuration directives. Impact: An authenticated attacker granted write access to NGINX Ingress Cont

Is CVE-2026-77180 actively exploited?

Active exploitation of CVE-2026-77180 has not been confirmed. Its EPSS score was 0.5% on 2026-09-29, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-77180?

CVE-2026-77180 has a CVSS v3 base score of 8.3 (HIGH severity).

Is CVE-2026-77180 affecting your environment?

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