CVE-2026-82429 Apache Storm - Privilege Escalation

Apache Storm < 3.1.0 contains a privilege escalation caused by TOCTOU race condition in setuid-root worker-launcher binary using lchown and chmod on re-resolved paths, letting untrusted tenant escalate privileges by symlink attack, exploit requires running untrusted topology code on supervisor node.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.13% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
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-367

Vendor fix

Upgrade to Apache Storm version 3.1.0 or later where privileged operations use file descriptors instead of pathnames.

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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