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HIGH

OpenKruise PodProbeMarker is Vulnerable to SSRF via Unrestricted Host Field

Published Feb 25, 2026

Description

Kruise provides automated management of large-scale applications on Kubernetes. Prior to versions 1.8.3 and 1.7.5, PodProbeMarker allows defining custom probes with TCPSocket or HTTPGet handlers. The webhook validation does not restrict the Host field in these probe configurations. Since kruise-daemon runs with hostNetwork=true, it executes probes from the node network namespace. An attacker with PodProbeMarker creation permission can specify arbitrary Host values to trigger SSRF from the node, perform port scanning, and receive response feedback through NodePodProbe status messages. Versions 1.8.3 and 1.7.5 patch the issue.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

References (7)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner GitHub_M
Published Feb 25, 2026
Updated Feb 26, 2026
Reserved Jan 19, 2026
CISA Vulnrichment
Updated Feb 26, 2026
NVD
Status Analyzed
Modified Jun 17, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner GitHub_M
Published Feb 25, 2026
Updated Feb 26, 2026
Exploited since n/a
EUVD-2026-8710 GHSA-9FJ4-3849-RV9G