GitHub Advisoryadvisory · Maven

GHSA-j39c-c8hj-x4j3 Exposure of Sensitive Information to an Unauthorized Actor in Apache Tomcat

HIGH Published 2021-06-16 Modified 2026-08-25 Official page ↗
Aliases
CVE-2021-25122
Ecosystem
Maven
Packages
org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat-coyote
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200
Reviewed
2021-03-24

Affected packages

• Maven org.apache.tomcat.embed:tomcat-embed-core: >= 10.0.0-M1, < 10.0.2 → fixed in 10.0.2 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 9.0.0-M1, < 9.0.43 → fixed in 9.0.43 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 8.5.0, < 8.5.63 → fixed in 8.5.63 • Maven org.apache.tomcat:tomcat-coyote: >= 10.0.0-M1, < 10.0.2 → fixed in 10.0.2

Description

When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

Related

Alias · CVE (1)

  • CVE-2021-25122 When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could… vulnerability

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References