EUVD-2026-77517
GHSA-3mpj-29mm-p7wr
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Network-reachable, no credentials required by default or by pipeline ordering, availability-only impact (heap exhaustion); no C/I impact identified.
Primary rating from Vendor (CNA).
CVSS VectorVendor
Lifecycle Timeline
5Description PRE-NVD
Articles & Coverage 1
AnalysisAI
Unauthenticated remote memory exhaustion in Apache Storm Worker (org.apache.storm:storm-client 3.0.0-3.0.x) allows any TCP peer reachable to a worker slot port to drive arbitrarily large JVM heap allocations with a single crafted frame. The Netty pipeline installs the message decoder ahead of SASL authentication handlers, and the default value of storm.messaging.netty.authentication is false, meaning no credentials are required regardless of configuration. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires TCP reachability to at least one Apache Storm worker slot port on an affected node (3.0.0-3.0.x). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | No vendor-supplied CVSS vector was provided; all metrics in this analysis are independently assessed. … 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 | Upgrade org.apache.storm:storm-client to version 3.1.0, where the Netty message decoder is re-ordered in the pipeline to execute only after SASL handshake completion, eliminating the pre-authentication allocation path entirely. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running Apache Storm 3.0.0-3.0.x and assess network exposure of worker slot ports; immediately restrict TCP access to worker ports to only trusted cluster members using firewall rules or network segmentation. …
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