VulnSocial

CVE-2026-50540General

LOWCVSS 9.6 · CRITICAL

Signal is active with 3 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

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Prior to version 4.0.0, kata-runtime is vulnerable to host code execution via an unvalidated configuration path annotation. The runtime accepts an arbitrary io.katacontainers.config_path pod annotation and loads the referenced host TOML file without restriction. As a result, a pod user who can place a file at a host-visible path can supply a configuration that selects an attacker-controlled hypervisor or virtio-fs daemon binary, executing code as root on the host. This issue is fixed in version 4.0.0.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-20CWE-22

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 2 classified signals
  • Disclosure: 1 classified signal
  • 3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-08-08: 3Technical Details · 2026-08-08: 108-08
Signal classification2 categories
General
266.7%
Disclosure
133.3%
Referenced assets2 URLs
By indicator
Full discourse3 posts
  • CyberSignal | Cybersecurity News@XQOPTRX
    Disclosure

    ☁️ Kata Containers flaw can lead to HOST root execution CVE-2026-50540 affects Kata Containers. A pod user able to manipulate a configuration-path annotation could potentially make the runtime load an attacker-controlled host configuration and ultimately execute code as root on the host. 🔎 Source: Kata Containers Security Advisory / TheHackerWire #CloudSecurity #Kubernetes #Containers #CVE #CyberSecurity

    Post summary

    An advisory for CVE‑2026‑50540 discloses that manipulating a configuration-path annotation could allow a pod user to execute code as root on the host.

    0000038
    34 followersView on X
  • Infoflowcloud@infoflowcloud
    General

    🚨*CVE* CVE-2026-50540 Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Prior to version 4… https://www.cve.org/CVERecord?id=CVE-2026-50540 ----- Traducción: CVE-2026-50540 Kat… http://infoflow.cloud`

    Post summary

    A brief announcement of CVE-2026-50540 pertaining to Kata Containers, with no actionable details on PoC, exploit, mitigation, or active threat.

    00000131
    98 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-50540 Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Prior to version 4… https://www.cve.org/CVERecord?id=CVE-2026-50540

    Post summary

    The text merely references CVE‑2026‑50540 and links to the CVE record, providing no additional details or claims.

    00000737
    57.9K followersView on X

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