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CVE-2025-1098

ingress-nginx controller - configuration injection via unsanitized mirror annotations

8.8 HighPublic exploitFix available

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

86.1%Up 85.8 points since Mar 25, 2025
90%50%10%1%

What each source reports

CVE List Score used 8.8

ingress-nginx controller - configuration injection via unsanitized mirror annotations

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Record
CVE-2025-1098
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2025-8033 8.8

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Record
EUVD-2025-8033
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-vg63-w3p9-jc9m 8.8

ingress-nginx controller - configuration injection via unsanitized mirror annotations

A security issue was discovered in ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Record
GHSA-vg63-w3p9-jc9m
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-15, CWE-20
Updated
2026-11-02
NVD 8.8

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Record
CVE-2025-1098
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSV 8.8

ingress-nginx controller - configuration injection via unsanitized mirror annotations

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Record
CVE-2025-1098
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVGHSA-vg63-w3p9-jc9m 8.8

ingress-nginx controller - configuration injection via unsanitized mirror annotations

A security issue was discovered in ingress-nginx where the mirror-target and mirror-host Ingress annotations can be used to inject arbitrary 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.)

Record
GHSA-vg63-w3p9-jc9m
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-15, CWE-20
Updated
2026-11-02
OSVGO-2025-3568 No score

ingress-nginx controller - configuration injection via unsanitized mirror annotations in k8s.io/ingress-nginx

ingress-nginx controller - configuration injection via unsanitized mirror annotations in k8s.io/ingress-nginx.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: k8s.io/ingress-nginx before v1.11.5, from v1.12.0-beta.0 before v1.12.1.

Record
GO-2025-3568
Updated
2026-11-02
OSVopenSUSE-SU-2025:14937-1 No score

govulncheck-vulndb-0.0.20250327T184518-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20250327T184518-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:14937-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
k8s.io/ingress-nginx
Go
before 1.11.5
1.11.5
k8s.io/ingress-nginx
Go
1.12.0-beta.0 up to 1.12.1
1.12.1
k8s.io/ingress-nginx
Go
All versions None known
govulncheck-vulndb
openSUSE:Tumbleweed
From an advisory covering 30 CVEs
before 0.0.20250327T184518-1.1
0.0.20250327T184518-1.1

Public exploits

Links only. Every CVE stores no exploit code.

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, Exploit-DB, GitHub Advisories, Nuclei, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-1098 is a high vulnerability (CVSS 8.8) in Kubernetes Ingress-nginx, published March 24, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 86.1%, the 99th percentile. Fixed in k8s.io/ingress-nginx 1.11.5.

References

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