VulnSocial

CVE-2026-56742Patch(cilium / cilium)

LOWCVSS 8.9 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch cilium cilium systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant authorization mechanism. Gateway API functionality is disabled by default. This issue is fixed in versions 1.17.17, 1.18.11, and 1.19.5.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • cilium

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
cilium
Products
cilium

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-20: 1Patch / Workaround · 2026-07-20: 107-20
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • كاسبر سكاي@KasperskyDev
    Patch

    ثغرة في محرك شبكة كوبرنيتيس تتيح لمستخدم محدود الصلاحيات تحويل كل حركة البيانات المعرّف : CVE-2026-56742 الخطورة : Medium - Traffic Mirror Bypass المنتج : Cilium Gateway API (HTTPRoutes) الحل : Upgrade to v1.17.17, v1.18.11, or v1.19.5 #CVE #Cilium #Kubernetes #CyberSecurity

    Post summary

    The post announces a CVE‑2026‑56742 affecting the Cilium Gateway API and advises upgrading to specified versions to mitigate a medium‑severity traffic mirror bypass vulnerability.

    01000101
    39.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appciliumcilium---

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