Time-of-check Time-of-use (TOCTOU) Race Condition Affecting org.apache.storm:storm-core package, versions [3.0.0,3.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Sept 2026
- disclosed14 Sept 2026
- creditUnknown
Introduced: 14 Sep 2026
NewCVE-2026-82429 (opens in a new tab)How to fix?
Upgrade org.apache.storm:storm-core to version 3.1.0 or higher.
Overview
org.apache.storm:storm-core is a distributed realtime computation system.
Affected versions of this package are vulnerable to Time-of-check Time-of-use (TOCTOU) Race Condition via the worker-launcher process. An attacker can gain elevated privileges by exploiting a race condition between the classification of directory entries and the execution of privileged operations such as lchown or chmod on pathnames, allowing redirection of these operations to arbitrary files through symbolic links. This is only exploitable if untrusted topology code is executed on supervisors configured with supervisor.run.worker.as.user.