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Vulnerability · Published Feb 3, 2021 · Assigned by apache

CVE-2020-17523

Critical 9.8

In plain English

A critical-severity security flaw in Apache Shiro. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 85.9% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)85.9%top 0.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC

Official description

Apache Shiro before 1.7.1, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.apache.shiro:shiro-spring1.7.1GHSA-v98j-7crc-wvrj
Mavenorg.apache.shiro:shiro-spring-boot-starter1.7.1GHSA-v98j-7crc-wvrj
Mavenorg.apache.shiro:shiro-web1.7.1GHSA-v98j-7crc-wvrj

Affected products (as reported)

VendorProductVersions
n/a Apache Shiro before 1.7.1

References