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CVE-2020-11989

Improper Authentication in Apache Shiro

9.8 CriticalPublic exploitFix available

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

24.4%Up 4.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used9.8

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
CVE-2020-11989
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE ListNo score

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
CVE-2020-11989
Updated
2026-11-02
EUVDEUVD-2021-0981No score

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
EUVD-2021-0981
Updated
2026-11-03
GitHub AdvisoriesGHSA-72w9-fcj5-3fcg9.8

Improper Authentication in Apache Shiro

Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
GHSA-72w9-fcj5-3fcg
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
OSV9.8

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
CVE-2020-11989
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-119899.8

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
DEBIAN-CVE-2020-11989
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVGHSA-72w9-fcj5-3fcg9.8

Improper Authentication in Apache Shiro

Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
GHSA-72w9-fcj5-3fcg
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
OSVUBUNTU-CVE-2020-119899.8

Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Record
UBUNTU-CVE-2020-11989
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-12
OSVUSN-4740-1No score

shiro vulnerabilities

It was discovered that Apache Shiro mishandled specially crafted requests. An attacker could use this vulnerability to bypass authentication mechanisms.

Record
USN-4740-1
Updated
2026-11-02
OSVUSN-9061-1No score

shiro vulnerabilities

It was discovered that Apache Shiro incorrectly handled certain specially crafted requests when used with Spring dynamic controllers. A remote attacker could possibly use this issue to bypass authentication. (CVE-2020-1957, CVE-2020-11989)

Record
USN-9061-1
Updated
2026-11-13

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.shiro:shiro-core
Maven
before 1.5.3
1.5.3
shiro
Debian:12
before 1.3.2-5
1.3.2-5
shiro
Debian:13
before 1.3.2-5
1.3.2-5
shiro
Debian:14
before 1.3.2-5
1.3.2-5
shiro
Debian:9
From an advisory covering 2 CVEs
before 1.3.2-1+deb9u1, plus listed versions
1.3.2-1
1.3.2-1+deb9u1
org.apache.shiro:shiro-core
Maven
before 1.5.3, plus listed versions
1.0.0-incubating1.1.01.2.01.2.11.2.2
Show 14 moreShow less
1.2.31.2.41.2.51.2.61.3.01.3.11.3.21.4.01.4.0-RC21.4.11.4.21.5.01.5.11.5.2
1.5.3
shiro
Ubuntu:18.04:LTS
before 1.3.2-3~18.04.1, plus listed versions
1.3.2-21.3.2-3~18.04
1.3.2-3~18.04.1
shiro
Ubuntu:20.04:LTS
before 1.3.2-4ubuntu0.1, plus listed versions
1.3.2-4
1.3.2-4ubuntu0.1
shiro
Ubuntu:18.04:LTS
From an advisory covering 2 CVEs
before 1.3.2-3~18.04.1, plus listed versions
1.3.2-21.3.2-3~18.04
1.3.2-3~18.04.1
shiro
Ubuntu:20.04:LTS
From an advisory covering 2 CVEs
before 1.3.2-4ubuntu0.1, plus listed versions
1.3.2-4
1.3.2-4ubuntu0.1
shiro
Ubuntu:Pro:16.04:LTS
From an advisory covering 2 CVEs
before 1.2.4-1ubuntu0.1~esm1, plus listed versions
1.2.4-1
1.2.4-1ubuntu0.1~esm1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubHYWZ36/HYWZ36-CVE-2020-11989-code2020-10-18
PoC in GitHubcuijiung/shiro-CVE-2020-119892025-07-11

History

History
RecordedChangedSources
affectedOSV
affected, aliases, referencesOSV
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-11989 is a critical vulnerability (CVSS 9.8) in Apache Shiro, published June 22, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 24.4%, the 97th percentile. Fixed in org.apache.shiro:shiro-core 1.5.3.

References

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