CVE-2026-44247

Volcano: Webhook server vulnerable to OOM due to unbounded HTTP request body size

Published May 27, 2026 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
Volcano is a Kubernetes-native batch scheduling system. Prior to v1.14.2, v1.13.3, and v1.12.4, the Volcano webhook server does not enforce a size limit on incoming HTTP request bodies. Any in-cluster pod that can reach the webhook endpoint may send an arbitrarily large request body, potentially causing the webhook server to be killed by OOM. All Volcano deployments with the webhook server exposed to in-cluster traffic are affected. This vulnerability is fixed in v1.14.2, v1.13.3, and v1.12.4.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-8wxp-xxp2-rcgx Volcano's webhook server vulnerable to OOM due to unbounded HTTP request body size
History
Type Values Removed Values Added
First Time appeared Linuxfoundation
Linuxfoundation volcano
CPEs cpe:2.3:a:linuxfoundation:volcano:*:*:*:*:*:kubernetes:*:*
Vendors & Products Linuxfoundation
Linuxfoundation volcano
Type Values Removed Values Added
First Time appeared Volcano
Volcano volcano
Vendors & Products Volcano
Volcano volcano
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Volcano is a Kubernetes-native batch scheduling system. Prior to v1.14.2, v1.13.3, and v1.12.4, the Volcano webhook server does not enforce a size limit on incoming HTTP request bodies. Any in-cluster pod that can reach the webhook endpoint may send an arbitrarily large request body, potentially causing the webhook server to be killed by OOM. All Volcano deployments with the webhook server exposed to in-cluster traffic are affected. This vulnerability is fixed in v1.14.2, v1.13.3, and v1.12.4.
Title Volcano: Webhook server vulnerable to OOM due to unbounded HTTP request body size
Weaknesses CWE-400
CWE-770
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 30, 2026, 1:50 AM
Reserved
May 5, 2026, 4:33 PM
Status
Analyzed
Published
May 27, 2026, 10:16 PM
Modified
Jun 17, 2026, 10:50 AM