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Fencer Intel
high 8.8

CVE-2025-1097 in the critical feed json

ingress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation

published last yr. modified last mo. also EUVD-2025-8034 , GHSA-823x-fv5p-h7hw , GO-2025-3565

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
37.0%
EPSS 37.0% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-tls-match-cn` 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.)

Patch / fix

  • go k8s.io/ingress-nginx 1.11.5, 1.12.1
  • kubernetes ingress-nginx 1.11.5, 1.12.1
  • kubernetes nginx_ingress_controller 1.11.5, 1.12.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250327T184518-1.1

opensuse advisories openSUSE-SU-2025:14937-1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-1097 updated cvss 8.8

ingress-nginx: ingress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-100-05 updated cvss 8.8

Siemens Insights Hub Private Cloud

  • Siemens Insights Hub Private Cloud
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Timeline

  1. Published
  2. First public exploit (EDB-52475)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

36.96% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-52475 Ingress-NGINX Admission Controller v1.11.1 - FD Injection to RCE remote, 2026-02-04
  • Nuclei template Ingress-Nginx Controller - Configuration Injection via Unsanitized `auth-tls-match-cn` Annotation nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go k8s.io/ingress-nginx
<1.11.5
>=1.12.0-beta.0, <1.12.1
all versions
1.11.5
1.12.1

Affected products

  • kubernetes ingress-nginx

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-15 External Control of System or Configuration Setting
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.