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Vulnerability record · public intelligence
CVE-2020-17523
CRITICAL
Authentication bypass in Apache Shiro
Published Feb 3, 2021 · Updated Oct 22, 2026 · Also known as GHSA-v98j-7crc-wvrj
Severity · CVSSCRITICAL · 9.8
Known exploitationNot listed
EPSS / likelihood85.91%
QFinch risk score35 / 100
Original summary
Normalized public record · Updated Oct 22, 2026
Authentication bypass in Apache Shiro
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Apache Shiro before 1.7.1, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
CVENVDOSVEPSSGHSA
- SSVC priority
- MEDIUM
- Confidence
- 35%
- Aliases
- GHSA-v98j-7crc-wvrj
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- lists.apache.org ↗
- [activemq-gitbox] 20210210 [GitHub] [activemq] ehossack-aws opened a new pull request #614: Update shiro to 1.7.1 ↗
- [activemq-issues] 20210301 [jira] [Created] (AMQ-8159) High severity security issues found in Apache Shiro v.1.7.0 ↗
- [shiro-dev] 20210331 Re: Request for assistance to backport CVE-2020-13933 fix ↗
- [shiro-dev] 20210407 Re: Request for assistance to backport CVE-2020-13933 fix ↗
- [shiro-dev] 20210424 Re: Ask help for upgrading Shiro in CDH platform to 1.7.1 ↗
- [activemq-users] 20210427 Release date for ActiveMQ v5.16.2 to fix CVEs ↗
- [shiro-dev] 20210504 Re: Request for assistance to backport CVE-2020-13933 fix ↗
Record history
Published Feb 3, 2021 · Last refreshed Oct 22, 2026