Time-of-check Time-of-use (TOCTOU) Race Condition Affecting org.apache.tomcat:tomcat-util package, versions [9.0.47,9.0.123)
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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- published25 Oct 2026
- disclosed20 Oct 2026
- creditUnknown
Introduced: 20 Oct 2026
NewCVE-2026-80353 (opens in a new tab)How to fix?
Upgrade org.apache.tomcat:tomcat-util to version 9.0.123 or higher.
Overview
org.apache.tomcat:tomcat-util is a Common code shared by multiple Tomcat components.
Affected versions of this package are vulnerable to Time-of-check Time-of-use (TOCTOU) Race Condition in the process of creating unix domain sockets for the APR/Native connector. An attacker can gain unauthorized local access to the unix domain socket by exploiting a race condition between the time permissions are checked and the time they are set.