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Fencer Vulns
high 8.2

CVE-2025-32777 json

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

published 2025-04-30 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-12751 , GHSA-hg79-fw4p-25p8 , GO-2025-3656

cvss
8.2
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Volcano is a Kubernetes-native batch scheduling system. Prior to versions 1.11.2, 1.10.2, 1.9.1, 1.11.0-network-topology-preview.3, and 1.12.0-alpha.2, attacker compromise of either the Elastic service or the extender plugin can 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. This issue has been patched in versions 1.11.2, 1.10.2, 1.9.1, 1.11.0-network-topology-preview.3, and 1.12.0-alpha.2.

Patch / fix

  • go volcano.sh/volcano 1.9.1, 1.10.2, 1.11.0-network-topology-preview.3, 1.11.2, 1.12.0-alpha.2
  • linuxfoundation volcano 1.9.1, 1.10.2, 1.11.0-network-topology-preview.3, 1.11.2, 1.12.0-alpha.2
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250506T153719-1.1

opensuse advisories openSUSE-SU-2025:15059-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
go volcano.sh/volcano
<1.9.1
>=1.10.0-alpha.0, <1.10.2
>=1.11.0-network-topology-preview.0, <1.11.0-network-topology-preview.3
>=1.11.0, <1.11.2
>=1.12.0-alpha.0, <1.12.0-alpha.2
1.9.1
1.10.2
1.11.0-network-topology-preview.3
1.11.2
1.12.0-alpha.2

Affected products

  • volcano-sh volcano

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.