CVE-2026-82441 Apache Storm - Broken Access Control

Apache Storm before 3.1.0 contains a broken access control vulnerability caused by lack of validation on blobstore dependency keys in topology submissions, letting attackers delete blobs of other topologies or cause leadership loss, exploit requires submitting crafted topology with malicious keys.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.27% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Denial Of Service, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-20

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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