Description
Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Shiro | Apache Shiro 1.5.2 - 1.5.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | shiro | 1.3.2-5 | — |
| Debian 13 | shiro | 1.3.2-5 | — |
| Debian 12 | shiro | 1.3.2-5 | — |
| Debian 9 | shiro | 1.3.2-1+deb9u1 | DLA-2273-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | shiro | 1.3.2-4ubuntu0.1 | USN-4740-1 |
| Ubuntu 18.04 LTS | shiro | 1.3.2-3~18.04.1 | USN-4740-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | shiro | 1.2.4-1ubuntu0.1~esm1 | USN-9061-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
cuijiung/shiro-CVE-2020-11989 ★ 0 · Jul 11, 2025
-
HYWZ36/HYWZ36-CVE-2020-11989-code ★ 0 · Oct 18, 2020
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.shiro:shiro-core | < 1.5.3 | 1.5.3 | GHSA-72w9-fcj5-3fcg |
Advisories 3
- USN-9061-1 shiro vulnerabilities Ubuntu Security Notices (USN) · Nov 12, 2026
- USN-4740-1 shiro vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-2273-1 shiro - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://lists.apache.org/thread.html/r72815a124a119c450b86189767d06848e0d380b1795c6c511d54a675%40%3Cuser.shiro.apache.org%3E
- [shiro-dev] 20200622 [Announce] CVE-2020-11989: Authentication Bypass by Primary Weakness mailing-list
- [shiro-commits] 20200622 svn commit: r1879089 - /shiro/site/publish/security-reports.html mailing-list
- [shiro-commits] 20200622 svn commit: r1879088 - /shiro/site/publish/security-reports.html mailing-list
- [geode-dev] 20200630 Re: Proposal to bring GEODE-8315 (shiro upgrade) to support branches mailing-list
- [geode-dev] 20200630 Proposal to bring GEODE-8315 (shiro upgrade) to support branches mailing-list
- [shiro-commits] 20200817 svn commit: r1880941 - /shiro/site/publish/security-reports.html mailing-list