Medium [CVE-2026-68525] Unauthorized resource access via FORM authentication bypass
This medium-severity Red Hat Linux advisory covers CVE-2026-68525 affecting Red Hat JBoss Web Server 6.2.5, Red Hat JBoss Web Server 6.2 on RHEL 10, Red Hat JBoss Web Server 6.2 on RHEL 8.
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Summary
Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fixes the issue. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be restricted to POST requests only.
This Moderate impact vulnerability in Apache Tomcat's FORM authentication process, as utilized in Red Hat JBoss Web Server, allows an attacker to bypass security constraints for POST requests.
This enables unauthorized access to resources that are configured to restrict POST access while permitting GET, potentially leading to unintended data exposure or manipulation. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).
Weakness: CWE-551.
- 11.0.0
- 11.0.24
- 10.1.0
- 10.1.57
- 9.0.0
- 9.0.120
- 8.5.0
- 8.5.100
- 7.0.0
- 7.0.109
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
- 11.0.25
- 10.1.58
- 9.0.121
- tomcat
- jws6-tomcat-0:10.1.49-16.redhat_00016.1.el10jws
- jws6-tomcat-0:10.1.49-16.redhat_00016.1.el8jws
- jws6-tomcat-0:10.1.49-16.redhat_00016.1.el9jws
- tomcat11-main-11.0.25-0.1.hum1
- tomcat10-main-10.1.59-0.1.hum1
- RHSA-2026:73982
- RHSA-2026:73981
- RHSA-2026:56039
- RHSA-2026:63137
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
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