Unintended Proxy or Intermediary in Apache Shiro - CVE-2026-58301
Published: August 31, 2026
Vulnerability identifier: #VU146320
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-58301
CWE-ID: CWE-441
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause the server to initiate a connection to an attacker-controlled URL and transmit attacker-controlled data.
The vulnerability exists due to improper access control in the Jakarta EE integration module when resubmitting a form via an HTTP POST request. A remote user can craft a specially crafted HTTP request to cause the server to initiate a connection to an attacker-controlled URL and transmit attacker-controlled data.
Only deployments that use the Jakarta EE integration module are vulnerable.
Affected software
Apache Shiro
How to mitigate CVE-2026-58301
Install security update from vendor's website.
Apache Shiro - update to 3.0.1