CVE-2025-15566Disclosure

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-proxy-set-headers` 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.)

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-20

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 7 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • General: 3 classified signals
  • Peaked 1d ago at 6 mentions (2026-02-06); latest day: 1
  • 7 total mentions across 2 days

Deep dive

Activity timeline7 mentions / 2d
02356Mentions · 2026-02-06: 6Mentions · 2026-02-11: 1Technical Details · 2026-02-06: 3Technical Details · 2026-02-11: 102-0602-11
Signal classification2 categories
Disclosure
457.1%
General
342.9%
Referenced assets5 URLs
Classification over time
DateTotalLabels
2026-02-066
Disclosure3General3
2026-02-111
Disclosure1
Full discourse7 posts
  • Kubernetes@kubernetesio
    Disclosure

    CVE-2025-15566: ingress-nginx auth-proxy-set-headers nginx configuration injection - https://github.com/kubernetes/kubernetes/issues/136789

    Post summary

    The text announces CVE‑2025‑15566, a configuration injection flaw in ingress‑nginx’s auth‑proxy‑set‑headers, with a link to a related GitHub issue.

    38043206.8K
    319.1K followersView on X
  • K8sContributors@K8sContributors
    Disclosure

    CVE-2025-15566: ingress-nginx auth-proxy-set-headers nginx configuration injection - https://github.com/kubernetes/kubernetes/issues/136789

    Post summary

    A GitHub issue references CVE-2025-15566, noting an ingress-nginx auth-proxy-set-headers configuration injection vulnerability, but offers no further technical or remediation details.

    110111982
    15.9K followersView on X
  • NanoVMs@nanovms
    General

    no this cve, CVE-2025-15566 is not from the set earlier this week - this is just the non-stop security nightmare that is kubernetes https://t.co/jIcxg8dr0D

    Post summary

    The tweet merely states that CVE‑2025‑15566 is not from a previously mentioned set and calls it a Kubernetes security nightmare, with no further technical or actionable detail.

    02030265
    2.0K followersView on X
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2025-15566 (CVSS:8.8, HIGH) is Awaiting Analysis. A security issue was discovered in ingress-nginx where the `http://nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress ..https://nvd.nist.gov/vuln/detail/CVE-2025-15566 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The post announces a new high‑severity vulnerability (CVE‑2025‑15566) in ingress‑nginx, detailing its CVSS score and the specific auth‑proxy header involved, with no evidence of exploitation or available patches.

    0000045
    171 followersView on X
  • Chris Short@ChrisShort
    General

    CVE-2025-15566 #devopsish #kubernetes #cve https://github.com/kubernetes/kubernetes/issues/136789

    Post summary

    The post merely references CVE‑2025‑15566 and links to a GitHub issue, providing no additional details about the vulnerability, exploitation, or mitigation.

    00000162
    18.9K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2025-15566 Kubernetes Ingress-Nginx Arbitrary Code Execution via Header Injection Annotation https://vulmon.com/vulnerabilitydetails?qid=CVE-2025-15566

    Post summary

    The post offers a concise title and a link to a vulnerability listing, mentioning that Kubernetes Ingress‑Nginx can suffer arbitrary code execution via header injection, but it provides no further details on PoC, exploitation, patches, or active attacks.

    0000095
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2025-15566 A security issue was discovered in ingress-nginx where the `http://nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress annotation can be used to inject configuration… https://www.cve.org/CVERecord?id=CVE-2025-15566

    Post summary

    The text discloses a vulnerability in ingress-nginx where the auth-proxy-set-headers annotation can be exploited to inject configuration settings. No PoC, exploit code, active exploitation, or patch information is provided.

    00000239
    56.5K followersView on X

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