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CVE-2025-32777 — Vulnerability in volcano.sh/volcano — CVE Details

HIGH

Volcano Scheduler Denial of Service via Unbounded Response from Elastic Service/extender Plugin

Published April 30, 2025Updated May 6, 2025Source: osv

Summary

### Impact This issue allows an attacker who has compromised either the Elastic service or the extender plugin to cause denial of service of the scheduler. This is a privilege escalation, because Volcano users may run their Elastic service and extender plugins in separate pods or nodes from the scheduler. In the Kubernetes security model, node isolation is a security boundary, and as such an attacker is able to cross that boundary in Volcano's case if they have compromised either the vulnerable services or the pod/node in which they are deployed. The scheduler will become unavailable to other users and workloads in the cluster. The scheduler will either crash with an unrecoverable OOM panic or freeze while consuming excessive amounts of memory. ### Workarounds No

Advisory Timeline

  • First published April 30, 2025 (530 days ago).
  • Last revised May 6, 2025 — 6 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update volcano.sh/volcano to 1.9.1 or later
go get volcano.sh/volcano@v1.9.1
Go
Update volcano.sh/volcano to 1.10.2 or later
go get volcano.sh/volcano@v1.10.2
Go
Update volcano.sh/volcano to 1.11.0-network-topology-preview.3 or later
go get volcano.sh/volcano@v1.11.0-network-topology-preview.3
Go
Update volcano.sh/volcano to 1.12.0-alpha.2 or later
go get volcano.sh/volcano@v1.12.0-alpha.2
Go
Update volcano.sh/volcano to 1.11.2 or later
go get volcano.sh/volcano@v1.11.2

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (5)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
volcano.sh/volcano
go
All versions1.9.1
volcano.sh/volcano
go
All versions1.10.2
volcano.sh/volcano
go
All versions1.11.0-network-topology-preview.3
volcano.sh/volcano
go
All versions1.12.0-alpha.2
volcano.sh/volcano
go
All versions1.11.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-770
    Allocation of Resources Without LimitsMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.2 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H

Frequently Asked Questions

What is CVE-2025-32777?
Volcano Scheduler Denial of Service via Unbounded Response from Elastic Service/extender Plugin This vulnerability has been assigned a severity rating of HIGH (CVSS score: 9.2/10).
How do I check if my project is affected by CVE-2025-32777?
CVE-2025-32777 affects volcano.sh/volcano. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-32777 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.2

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-hg79-fw4p-25p8
GO-2025-3656

Related CVEs

  • CVE-2024-36533
    CRITICAL

    Volcano has insecure permissions

  • CVE-2026-107809
    HIGH

    Nginx-UI AuthRequired token cookie fallback enables CSRF against management APIs

  • CVE-2026-107813
    HIGH

    Nginx UI: Incomplete fix of CVE-2026-84315 - the api/cluster router was not - wrapped in RequireSecureSession, so those sensitive mutations run without OTP step-up

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