CVE-2026-82439 Apache Storm DRPC - Denial of Service

Apache Storm DRPC server contains a memory exhaustion vulnerability caused by unbounded retention of function name entries in request queues, letting unauthenticated attackers exhaust server heap by sending distinct function names, exploit requires no credentials.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.34% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-770

Vendor fix

Upgrade to version 3.1.0 or later where function queues are removed when empty; alternatively, restrict access to DRPC endpoints via authorization and network controls.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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