CVE-2021-41303

highpriority · attend · 66EPSS 0.761 · 100 %ileEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

76.1% (100th) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287USCWE-287US

affected products (6)

Products and version ranges known to be affected.

Apache Software Foundation Apache ShiroApache Shiro → 1.8.0enisa_euvdEU
Apache Software Foundation Shiro≤ 1.8.0fstec_bduRU
apache shiro< 1.8.0nvdUScpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*
oracle financial services crime and compliance management studio= 8.0.8.2.0nvdUScpe:2.3:a:oracle:financial_services_crime_and_compliance_management_studio:*:*:*:*:*:*:*:*
oracle financial services crime and compliance management studio= 8.0.8.3.0nvdUScpe:2.3:a:oracle:financial_services_crime_and_compliance_management_studio:*:*:*:*:*:*:*:*
Maven org.apache.shiro:shiro-core< 1.8.0osvUSpkg:maven/org.apache.shiro/shiro-core

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-f6jp-j6w3-w9hmApache Shiro vulnerable to a specially crafted HTTP request causing an authentication bypass2021-09-20ghsa · osvUS
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.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2021-09-17modified 2026-06-17

references (15)

External citations — patches, advisories, analysis.

scry

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