CVE-2026-82427 Apache Storm - Path Traversal & Remote Code Execution

Apache Storm contains a path traversal vulnerability in topology.blobstore.map allowing submitters to manipulate symlink targets, letting attackers as supervisor user delete files and execute code as other OS users, exploit requires topology submission.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.15% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write, Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Upgrade to Apache Storm version 3.1.0 or later.

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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