CVE-2021-41303 in the critical feed json
Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass
published 2021-09-17 5 y ago modified 2026-06-17 4 mo ago also GHSA-f6jp-j6w3-w9hm , EUVD-2021-2049
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 76.1%
- EPSS 76.1% chance of exploitation in 30 days, percentile 99.5%
- public exploits
- 0
- none known
Summary
Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass. Users should update to Apache Shiro 1.8.0.
Patch / fix
- maven org.apache.shiro:shiro-core 1.8.0
- Apache Software Foundation Apache Shiro 1.8.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2021-41303 updated cvss 9.8
shiro: specially crafted HTTP request may cause an authentication bypass
-
Red Hat Fuse 7 shiro-web shiro-webaffected: no fix available “Fix deferred”
-
Red Hat JBoss A-MQ 6 shiro-web shiro-web Red Hat JBoss Fuse 6 shiro-web shiro-web Red Hat OpenStack Platform 10 (Newton) opendaylight Red Hat OpenStack Platform 13 (Queens) opendaylightaffected: no fix planned “Out of support scope”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
76.13% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.shiro:shiro-core | <1.8.0 |
1.8.0 |
Affected products
- Apache Software Foundation Apache Shiro
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
oracle.com
/security-alerts/cpujul2022.html
web, patch, third-party-advisory
-
lists.apache.org
/thread.html/re470be1ffea44bca28ccb0e67a4cf5d744e2d2b981d00fdbbf5abc13%40%3Cannounce.shiro.apache.org%3E
web, mailing-list, vendor-advisory
-
lists.apache.org
/thread.html/raae98bb934e4bde304465896ea02d9798e257e486d04a42221e2c41b%40%3Cuser.shiro.apache.org%3E
mailing-list
-
security.netapp.com
/advisory/ntap-20220609-0001/
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-41303
advisory
-
lists.apache.org
/thread.html/raae98bb934e4bde304465896ea02d9798e257e486d04a42221e2c41b@%3Cuser.shiro.apache.org%3E
web
-
security.netapp.com
/advisory/ntap-20220609-0001
web
Sources
- CVE List CVE-2021-41303
- GitHub Advisory GHSA-f6jp-j6w3-w9hm
- NVD CVE-2021-41303
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.