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CVE-2026-88041

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous…

Risk score
53/100
CVSS
7.5 v3.1
Exploit chance (30 days)
0.2%
Published
20 Oct 2026

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What to know

What it is
Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122. Users are recommended to upgrade to version 11.0.27, …
Affected
See advisory
Fix
Upgrade the product to 11.0.27, 10.1.61 or 9.0.123 (whichever matches your release line), or later.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 7.5 high
  • Remotely exploitable without logging in

References

Original description

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Last activity 20 Oct 2026. Patch Forecast updates every hour.