CVE-2021-41303

Name: CVE-2021-41303
Creator: NVD / NIST
Published: 2021-09-17T09:15:09.267+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 75.57%

Last modified Jun 17, 2026

CVE-2021-41303 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass. Users should update to Apache Shiro 1.8.0.. EPSS estimates a 75.57% chance of exploitation in the next 30 days.

Description

Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass. Users should update to Apache Shiro 1.8.0.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

75.57%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Apache	Shiro	< 1.8.0
Oracle	Financial Services Crime And Compliance Management Studio	8.0.8.2.0
Oracle	Financial Services Crime And Compliance Management Studio	8.0.8.3.0

References

https://lists.apache.org/thread.html/raae98bb934e4bde304465896ea02d9798e257e486d04a42221e2c41b%40%3Cuser.shiro.apache.org%3E
https://lists.apache.org/thread.html/re470be1ffea44bca28ccb0e67a4cf5d744e2d2b981d00fdbbf5abc13%40%3Cannounce.shiro.apache.org%3EMailing List, Vendor Advisory
https://security.netapp.com/advisory/ntap-20220609-0001/Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://lists.apache.org/thread.html/raae98bb934e4bde304465896ea02d9798e257e486d04a42221e2c41b%40%3Cuser.shiro.apache.org%3E
https://lists.apache.org/thread.html/re470be1ffea44bca28ccb0e67a4cf5d744e2d2b981d00fdbbf5abc13%40%3Cannounce.shiro.apache.org%3EMailing List, Vendor Advisory
https://security.netapp.com/advisory/ntap-20220609-0001/Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory

Timeline

Published: Sep 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41303?

Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass. Users should update to Apache Shiro 1.8.0.

How severe is CVE-2021-41303?

CVE-2021-41303 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 75.57% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41303?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST