9.8

UBUNTU-CVE-2021-41303: shiro Ubuntu

CVSS: 9.8v3.1CriticalPublished
Published 17-09-2021Last modified 04-02-2026
Open JSON

Vulnerability summary

UBUNTU-CVE-2021-41303 is a critical (CVSS 9.8) vulnerability in shiro Ubuntu.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (OSV · Ubuntu), selected by version preference
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CVE-2021-41303

Timeline

  1. 17-09-2021
    PublishedVulnerability first disclosed.
  2. 04-02-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • shiroAll versions (No fix recorded)

1 vendor · 1 product

References

4 links