CVE-2026-65183

Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets

State: Published
Severity: 8.1 High
Published: Aug 25, 2026
Updated: Aug 26, 2026
Reserved: Jul 21, 2026

Description

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat when creating unix domain sockets allows an unauthorised local user to access the unix domain socket.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.42 through 9.0.120.

Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
Apache TomcatApache Software Foundation	11.0.0-M1 through 11.0.24Affected 10.1.0-M1 through 10.1.57Affected 9.0.42 through 9.0.120Affected 8.5.0 through 8.5.100Not affected 7.0.0 through 7.0.109Not affected

References

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