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CVE-2020-13933Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.
- 7.5HighCVSS base score
- 44.4%Exploitation in 30 daysEPSS · top 1.2% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.
Timeline
ID reserved
By apache
- 2 months later
· 2 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 44.4% · top 1.2% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
Apache Shiro
- affected Apache Shiro before version 1.6.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.shiro:shiro-coreGHSA-2vgm-wxr3-6w2j (opens in a new tab)
References
References16
- https://lists.apache.org/thread.html/r539f87706094e79c5da0826030384373f0041068936912876856835f%40%3Cdev.shiro.apache.org%3E (opens in a new tab)x_refsource_MISCx_transferred
- [geode-dev] 20200831 Proposal to bring GEODE-8456 (shiro upgrade) to support branches (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [geode-dev] 20200901 Re: Proposal to bring GEODE-8456 (shiro upgrade) to support branches (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20200924 Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20201004 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20201217 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20201219 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20201220 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20201221 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20201222 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20210130 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20210316 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20210331 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20210407 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [shiro-dev] 20210504 Re: Request for assistance to backport CVE-2020-13933 fix (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20210802 [SECURITY] [DLA 2726-1] shiro security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-0908 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-2vgm-wxr3-6w2j (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-13933)Record last updated .