Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets - Fix for CVE-2026-65183 did not
Affects tomcatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited : upgrade to 9.0.123 soon.
Data as of 29 Oct 2026, 14:41 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 9.0.123
Exploitation evidence
Disclosed: evidence found.
CVE published 20 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade tomcat to 9.0.123.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Bitnamitomcatpkg:bitnami/tomcatOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade Apache Tomcat to version 9.0.123 or later, which includes the fix for this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Description
A time-of-check time-of-use (TOCTOU) race condition vulnerability exists in Apache Tomcat when creating Unix domain sockets for the APR/Native connector. This flaw allows an unauthorized local user to access the Unix domain socket. The previous fix for CVE-2026-65183 addressed only the NIO connector and did not resolve the issue in the APR/Native connector. The vulnerability affects Apache Tomcat versions from 9.0.47 through 9.0.122. Upgrading to version 9.0.123 resolves the issue.