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Slurm slurmd CVE-2026-65138

MEDIUM
2026-09-03 vendor:ubuntu
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Severity by source

vuln.today AI
7.1 HIGH

Network-reachable slurmd port; Munge auth required (PR:L); heap over-read gives low confidentiality; crash gives high availability impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Lifecycle Timeline

1
Analysis Generated
Sep 04, 2026 - 11:10 vuln.today

DescriptionCVE.org

[Fix heap over-read when unpacking a malformed forward data RPC in slurmd. Fix a slurmd crash when handling a malformed forward data RPC with a missing socket address]

AnalysisAI

Heap over-read and crash vulnerabilities in Slurm's slurmd compute-node daemon expose HPC clusters to memory disclosure and denial of service. When slurmd receives a malformed forward data RPC, insufficient input validation allows an attacker to trigger a heap over-read during message unpacking or crash the daemon outright if the RPC lacks a required socket address. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires network connectivity to slurmd's RPC port (default TCP 6818) on a target compute node and the ability to generate valid Munge-authenticated messages, which in standard deployments requires possession of the shared Munge key or an existing authenticated session on the cluster. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment No CVSS vector or EPSS score was provided, requiring full inference from the patch description. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the updated Slurm package released by Ubuntu as soon as it is available for the deployed distribution release; Ubuntu is the reporting source and will carry the fix in its security repository. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-65138 vulnerability details – vuln.today

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